I want evidence for the claims you made (your claims were not formulated WRT neurochemistry).
But OK. Please give me evidence of the mechanism or process by which neurochemical activity 'becomes' or 'manifests' thought, consciousness, awareness and self awareness. Please give evidence that the relationship between neurochemical activity and consiousness is more than correlation (i.e. back up your claim that consiousness is caused by, or is a manifestation of, neurochemical activity.
Woah these arent easy questions to answer. However you speak as if the brain has a secondary mode of action. For example when an individual is in love there is an increase in oxytocin within the body. This release is ordered by the brain. Your brain controls EVERYTHING and it does so with chemicals.
Various chemicals like monoamine neurotransmitters (dopamine, 5-HT and so on) and these are the feel good hormones and increase in them boosts the pleasure centers with the brain. (cocaine works by blocking the reuptake of these (it also blocks NA))
Consciousness is caused by neurochemical activity. Everything is, right down to your breathing. The master gland in the brain is responsible for every hormone in your body. For you to fall asleep the brain needs to send a signal for the body to release melatonin.
Unfortunately I cannot provide the details that you satisfy you. You see the brain is probably the most complex object known to science, naturally its secrets will not be easy to unlock nor will the detailed science be such a simple task that a lay man can understand - that includes me. Im reminded everytime I see a neurologist's textbooks.
However to say that anything the brain does that is not caused by neurochemical activity is simply .... nonsensical. Even generating action potentials is done this way. The brain works on its own accord there is no spiritual power behind it, it will even augment your taste to ensure you are providing the correct nutrients for it. If anything with the complexity of the brain, its more likely the brain is capable of creating god than god is creating a brain.
How do you think the brains works ?
I wonder if there is anyone here who specializes in neurophysiology