To exert causation on the atomic structures of its brain, our electromagnetic consciousness "scrunches" itself into the specific waveforms that induce atomic resonances in neurons who have been "tuned" to that resonance frequency. Adding photon energy to atomic electrons excites the electrons into higher states of electric mass motion. Neurons whose atomic structures have been electromagnetically excited "fire" their excitation energy by emitting photon-waves out along axons and nerves where the electromagnetic energy ultimately energizes a muscle to "lift my arm".
Causal interactions between things that are made of electromagnetic wave energy are described by the 20th century energy-energy physics of wave mechanical interaction, which is wave harmonics. 20th century atomic physics is the matter-energy physics of atomic resonance dynamics by which things that are made of immaterial wave energy (photons) causally interact with things that are made of physical atomic matter (electrons/protons).
Wave mechanics and atomic resonance dynamics are established physics, not speculations. Neurophysics simply applies established physics to understand how "we" work.
Living plants, and solar panels, electronically stretch the wavelengths of visible light from the Sun, into the long wavelengths of household and bio-electricity. Our atomic bodies, atomic brains, and electromagnetic minds, all work with this long wavelength electromagnetic "electrical" energy. Long wave electricity is at the long end of the radio bandwidth. Living bodies and conscious minds work with radio wave energy and radio wave information communication systems.
In 1642 Descartes concluded that his mind was made of immaterial stuff, and his body/brain was made of material stuff, and the two kinds of stuff somehow come together in a human being so that "something like a single whole is formed". 20th century physics combined with 21st century neurospsychology confirms Descartes' conclusion. Our conscious mind is an energetic construction that is made of "immaterial" electromagnetic wave energy. Our body/brain is a physical construction that is made of massive 3 dimensional atomic "matter".
Our electromagnetic consciousness causally interacts with its atomic brain by the matter-energy physics of atomic resonance dynamics. Our electromagnetic consciousness causally interacts with electromagnetic information by the energy-energy physics of wave mechanics. That is the basic neurophysics of the brain-consciousness and consciousness-information relationships.
Our experiences of musical harmonics, and logical relations between our ideas (logical contradiction annihilates the equal but opposite amplitudes of both interacting information waves; logical agreement amplifies both waveforms), are wave mechanical interactions between the electromagnetic waveforms that embody information. Information is made of energy, which is real causally potent stuff. Information is not an "abstraction". It is real waveforms of energetic stuff that causally deliver their information-structure to the information recipient.
2600 years ago Pythagoras discovered the simple arithmetic relationships between the notes that combine to form the major harmonies on the musical scale. Pythagoras had discovered something about the rhythmic wave mechanical amplifications of the energetic wave information that we experience as "harmonic sounds".
All wave energies work by the physics of wave mechanics. Music and logic are simply two obvious examples that we are all familiar with because we directly empirically experience those wave mechanical effects in our self-aware electromagnetic waveform -- which is our conscious "spiritual" being -- that is causally interacting with the information waveforms and being "personally affected by" the alterations to its self-aware electromagnetic structure. We "know" wave interactions are harmonic because we experience the waves' mutual amplifications as harmonic music or the bright light of logical confirmation. Our conscious being harmonically resonates with the information we interact with, literally "becomes" those wave structures; and we experience the waveforms that we "become".
The 12th century monk St. Bernard of Clairvaux observed, "We become what we allow our mind to dwell upon." Neurophysics explains how we become the information that we choose to be aware of.
As humans, our conscious mind and the information we work with exist as electromagnetic wave energy in the radio bandwidth, which is long slow "light". The part of us that is conscious, the thing in us that "knows reality", is literally made of light; which is real wave energy that works by physics.
Our electromagnetic consciousness "is" our individual human spirit. A spirit is a real thing that is made of real stuff that works by physics. When electromagnetic wave energies wave mechanically combine into the kind of waveform structure that "is a spirit", the compound waveform "is conscious". Consciousness is an emergent phenomenon that emerges when electromagnetic "light" is built into a specific kind of compound structure. That compound structure of electromagnetic wave energies -- that thing that is made of photons of light -- is a spirit. The spirit made of light "is conscious".
So all the mystical intimations of "spiritual light" were on the right track to understanding what we are made of and how we work as conscious spiritual beings. But it wasn't until 21st century neurophysics put together the immaterial nature of spirits made of light, and the material nature of atomic brains whose electrical firings generate those conscious spirits and provide the electromagnetic information that we can wave mechanically interact with and consciously experience and perceive, that we could mentally see and rationally understand The Physics of Spirit.
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