God and Nature 2026 #2
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By Ranjit A. Thuraisingham
Quantum mechanics challenges classical notions of reality by introducing phenomena that defy everyday intuition. Among its most perplexing principles is superposition. This paper reflects on the principle of superposition and explores its metaphorical resonance with the dual nature of humanity as articulated by St. Paul.
1. The law of superposition in quantum mechanics
In quantum mechanics, superposition describes how a quantum system can be represented as a linear combination of multiple possible states, each with its own probability amplitude, until an interaction or measurement forces a definite outcome. When this occurs, uncertainty is removed and a definite state is registered. Measurement does not mean that a conscious observer is a requisite; it could be any interaction or decoherence. This principle is often illustrated by Erwin Schrödinger’s thought experiment in which a cat is placed in a sealed box with a radioactive atom, a Geiger counter, and a vial of poison. If the atom decays, the Geiger counter detects it and releases the poison, killing the cat. If the atom does not decay, the cat remains alive. According to this interpretation of quantum mechanics, the atom exists in a superposition of both decayed and non-decayed states until measured. Thus, prior to observation, there is uncertainty whether the cat is alive or dead, until someone opens the box and observes it, when a definite outcome is registered. This illustrates how measurement affects quantum states—a topic still debated in foundational interpretations of quantum mechanics.
Quantum mechanics challenges classical notions of reality by introducing phenomena that defy everyday intuition. Among its most perplexing principles is superposition. This paper reflects on the principle of superposition and explores its metaphorical resonance with the dual nature of humanity as articulated by St. Paul.
1. The law of superposition in quantum mechanics
In quantum mechanics, superposition describes how a quantum system can be represented as a linear combination of multiple possible states, each with its own probability amplitude, until an interaction or measurement forces a definite outcome. When this occurs, uncertainty is removed and a definite state is registered. Measurement does not mean that a conscious observer is a requisite; it could be any interaction or decoherence. This principle is often illustrated by Erwin Schrödinger’s thought experiment in which a cat is placed in a sealed box with a radioactive atom, a Geiger counter, and a vial of poison. If the atom decays, the Geiger counter detects it and releases the poison, killing the cat. If the atom does not decay, the cat remains alive. According to this interpretation of quantum mechanics, the atom exists in a superposition of both decayed and non-decayed states until measured. Thus, prior to observation, there is uncertainty whether the cat is alive or dead, until someone opens the box and observes it, when a definite outcome is registered. This illustrates how measurement affects quantum states—a topic still debated in foundational interpretations of quantum mechanics.
...the concept of superposition offers a rich metaphor for understanding the range of dispositions that can be manifested in human life. |
In quantum mechanics, the state of the system is characterized by the wavefunction Ψ. To illustrate this behavior, let us express the wavefunction of the radioactive atom in a simplified form as:
Ψ = a* |decay⟩ + b*|undecayed⟩
where |decay⟩ and |undecayed⟩ refer to the possible orthogonal (mutually exclusive) quantum states of the decayed, undecayed states of radioactive atom and the coefficients a, b determine the probability amplitudes for each state. Since probability in quantum mechanics is given by the square of the amplitudes, the probabilities for the cat being alive (Palive) and dead (Pdead) are related to the probabilities of the decayed or undecayed quantum states of the atom: Pdecay = |a|squared and Pundecayed = |b|squared. The values of a and b depend on the specifics of the experimental setup, including the properties of the radioactive decay process. What is known is that there is a probability that it could be in any of these states. Upon measurement, the wavefunction is taken to ‘collapse’ into one definite state. This mathematical framework is a cornerstone of the Copenhagen interpretation of quantum mechanics; though alternative interpretations (like Many-Worlds) argue that instead of collapse, both outcomes occur in separate realities.
2. St. Paul on the Dual Nature of Humanity
St. Paul, in his letter to the Galatians, urges believers to live according to the spirit instead of the flesh. In Galatians 5:16–23, we read:
But I say, walk by the Spirit, and you will not carry out the desire of the flesh. For the flesh sets its desire against the Spirit, and the Spirit against the flesh; for these are in opposition to one another, so that you may not do the things that you please. But if you are led by the Spirit, you are not under the law. Now the deeds of the flesh are evident, which are: immorality, impurity, sensuality, idolatry, sorcery, enmities, strife, jealousy, outbursts of anger, disputes, dissensions, factions, envying, drunkenness, carousing, and things like these, of which I forewarn you, just as I have forewarned you, that those who practice such things shall not inherit the kingdom of God. But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control; against such things there is no law [Gal 5: 16-23 NASB].
Similar themes appear in Colossians 3:2–14 and Romans 8:4–5, where Paul again encourages believers to set their minds on spiritual rather than earthly desires. Thus, Pauline theology presents humanity as living within a tension between two dispositions: the flesh and the spirit. In Romans 7:19 (ESV), Paul laments the internal conflict: “For I do not do the good I want, but the evil I do not want is what I keep on doing.” This conflict is sometimes described as between the “false self” and the “true self.” The false self seeks worldly validation, while the true self is rooted in divine love and spiritual authenticity. One may therefore use superposition as a metaphor for the human condition, representing it as a coexistence of two potential dispositions:
Whuman = a* ∣flesh⟩ + b*∣spirit⟩
Here, ∣flesh⟩ and ∣spirit⟩ symbolize the sinful self and spiritual self of the human. The coefficients a and b reflect the dominance of each aspect in a given moment within the human mind. Moral choice functions as the analogue of a measurement, determining which potential disposition becomes manifest in action. The choice we make—toward love, justice, or selfishness—determines which aspect of our nature becomes manifest. When a person acts with love, kindness, and truth, the “wavefunction” metaphorically collapses to the spiritual state (b=1, a=0). When driven by envy, impurity, or selfishness, it collapses to the sinful state (a=1, b=0). This preserves human freedom while illustrating the indeterminacy and potential inherent in each person.
The de Broglie hypothesis states that a quantum object exhibits both particle-like and wave-like properties. This duality has been confirmed experimentally: the photoelectric effect demonstrates particle-like behavior, while interference and diffraction experiments reveal wave-like behavior. Thus, certain measurements reveal properties which are linked to the object’s particle nature, while some others reveal its wave nature. St. Paul’s list of the deeds of the flesh reveal that they are all related to desires of the body, while those of the spirit are of a transcendent nature. Thus, in a metaphorical sense, wave–particle duality offers an image of how a single unified object can manifest different aspects depending on the context—just as human beings reveal either bodily or spiritual tendencies through their choices. Deeds associated with the flesh reveal our embodied, desire‑driven tendencies, while deeds of the spirit reveal our capacity for transcendence and divine orientation.
While quantum mechanics and Christian theology operate in distinct domains, the concept of superposition offers a rich metaphor for understanding the range of dispositions that can be manifested in human life. The metaphor is illustrative, not explanatory. By collapsing into spiritual or sinful material states through moral choice, we enact the drama of Pauline theology in lived experience. Importantly, this metaphor does not imply ontological dualism; it highlights existential tension within a single, unified person. It affirms the unity of the human person. The metaphor of superposition serves to highlight existential tension, not metaphysical division.
While evocative, the metaphor has boundaries. It is not applicable as a possible metaphorical analogy to the Trinity. Christians believe in a triune God, one God in three persons: Father God, Son Jesus, and the Holy Spirit. God is the one Being who has existed eternally in three distinct but not separate persons. The principle of superposition is about one system, which can exist in multiple states, while the Trinity is about three coeternal persons, not states. It is also not applicable to mental health conditions such as schizophrenia or dissociative identity disorder, which involve clinical disruptions in cognition or identity rather than freely chosen dispositions. There is no choice in those cases, and they are conditions and not potentialities. The metaphor of quantum duality is proposed in this essay only for the idea of one unified person holding dual potential dispositions, actualized through choice, as described in the Pauline epistles.
References
Ranjit A. Thuraisingham is a theoretical chemist who holds a PhD in molecular quantum mechanics from the University of Cambridge, UK. His scientific publications are in areas related to molecular physics, acoustic scattering, molecular neuroscience, and biomedical signal analysis. Now retired, he is engaged in trying to complement his understanding of Christianity with quantum physics.
Ψ = a* |decay⟩ + b*|undecayed⟩
where |decay⟩ and |undecayed⟩ refer to the possible orthogonal (mutually exclusive) quantum states of the decayed, undecayed states of radioactive atom and the coefficients a, b determine the probability amplitudes for each state. Since probability in quantum mechanics is given by the square of the amplitudes, the probabilities for the cat being alive (Palive) and dead (Pdead) are related to the probabilities of the decayed or undecayed quantum states of the atom: Pdecay = |a|squared and Pundecayed = |b|squared. The values of a and b depend on the specifics of the experimental setup, including the properties of the radioactive decay process. What is known is that there is a probability that it could be in any of these states. Upon measurement, the wavefunction is taken to ‘collapse’ into one definite state. This mathematical framework is a cornerstone of the Copenhagen interpretation of quantum mechanics; though alternative interpretations (like Many-Worlds) argue that instead of collapse, both outcomes occur in separate realities.
2. St. Paul on the Dual Nature of Humanity
St. Paul, in his letter to the Galatians, urges believers to live according to the spirit instead of the flesh. In Galatians 5:16–23, we read:
But I say, walk by the Spirit, and you will not carry out the desire of the flesh. For the flesh sets its desire against the Spirit, and the Spirit against the flesh; for these are in opposition to one another, so that you may not do the things that you please. But if you are led by the Spirit, you are not under the law. Now the deeds of the flesh are evident, which are: immorality, impurity, sensuality, idolatry, sorcery, enmities, strife, jealousy, outbursts of anger, disputes, dissensions, factions, envying, drunkenness, carousing, and things like these, of which I forewarn you, just as I have forewarned you, that those who practice such things shall not inherit the kingdom of God. But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control; against such things there is no law [Gal 5: 16-23 NASB].
Similar themes appear in Colossians 3:2–14 and Romans 8:4–5, where Paul again encourages believers to set their minds on spiritual rather than earthly desires. Thus, Pauline theology presents humanity as living within a tension between two dispositions: the flesh and the spirit. In Romans 7:19 (ESV), Paul laments the internal conflict: “For I do not do the good I want, but the evil I do not want is what I keep on doing.” This conflict is sometimes described as between the “false self” and the “true self.” The false self seeks worldly validation, while the true self is rooted in divine love and spiritual authenticity. One may therefore use superposition as a metaphor for the human condition, representing it as a coexistence of two potential dispositions:
Whuman = a* ∣flesh⟩ + b*∣spirit⟩
Here, ∣flesh⟩ and ∣spirit⟩ symbolize the sinful self and spiritual self of the human. The coefficients a and b reflect the dominance of each aspect in a given moment within the human mind. Moral choice functions as the analogue of a measurement, determining which potential disposition becomes manifest in action. The choice we make—toward love, justice, or selfishness—determines which aspect of our nature becomes manifest. When a person acts with love, kindness, and truth, the “wavefunction” metaphorically collapses to the spiritual state (b=1, a=0). When driven by envy, impurity, or selfishness, it collapses to the sinful state (a=1, b=0). This preserves human freedom while illustrating the indeterminacy and potential inherent in each person.
The de Broglie hypothesis states that a quantum object exhibits both particle-like and wave-like properties. This duality has been confirmed experimentally: the photoelectric effect demonstrates particle-like behavior, while interference and diffraction experiments reveal wave-like behavior. Thus, certain measurements reveal properties which are linked to the object’s particle nature, while some others reveal its wave nature. St. Paul’s list of the deeds of the flesh reveal that they are all related to desires of the body, while those of the spirit are of a transcendent nature. Thus, in a metaphorical sense, wave–particle duality offers an image of how a single unified object can manifest different aspects depending on the context—just as human beings reveal either bodily or spiritual tendencies through their choices. Deeds associated with the flesh reveal our embodied, desire‑driven tendencies, while deeds of the spirit reveal our capacity for transcendence and divine orientation.
While quantum mechanics and Christian theology operate in distinct domains, the concept of superposition offers a rich metaphor for understanding the range of dispositions that can be manifested in human life. The metaphor is illustrative, not explanatory. By collapsing into spiritual or sinful material states through moral choice, we enact the drama of Pauline theology in lived experience. Importantly, this metaphor does not imply ontological dualism; it highlights existential tension within a single, unified person. It affirms the unity of the human person. The metaphor of superposition serves to highlight existential tension, not metaphysical division.
While evocative, the metaphor has boundaries. It is not applicable as a possible metaphorical analogy to the Trinity. Christians believe in a triune God, one God in three persons: Father God, Son Jesus, and the Holy Spirit. God is the one Being who has existed eternally in three distinct but not separate persons. The principle of superposition is about one system, which can exist in multiple states, while the Trinity is about three coeternal persons, not states. It is also not applicable to mental health conditions such as schizophrenia or dissociative identity disorder, which involve clinical disruptions in cognition or identity rather than freely chosen dispositions. There is no choice in those cases, and they are conditions and not potentialities. The metaphor of quantum duality is proposed in this essay only for the idea of one unified person holding dual potential dispositions, actualized through choice, as described in the Pauline epistles.
References
- Schrödinger, E. (1935). "Die gegenwärtige Situation in der Quantenmechanik." Naturwissenschaften, 23(48), 807–812.
- de Broglie, L. (1924). "Recherches sur la théorie des quanta." Thesis, Paris. Reprinted in Annales de la Fondation Louis de Broglie, 17 (1992), 22.
- The Holy Bible, New American Standard Bible. Galatians 5:16–23, Colossians 3:2–14, Romans 8:4–5.
Ranjit A. Thuraisingham is a theoretical chemist who holds a PhD in molecular quantum mechanics from the University of Cambridge, UK. His scientific publications are in areas related to molecular physics, acoustic scattering, molecular neuroscience, and biomedical signal analysis. Now retired, he is engaged in trying to complement his understanding of Christianity with quantum physics.