We as a species are at Day One of understanding a neuroscience of consciousness. Natural philosophers since the time of Ibn Rushd have vociferously argued that

We as a species are at Day One of understanding a neuroscience of consciousness. Natural philosophers since the time of Ibn Rushd have vociferously argued that reason constitutes a legitimate avenue for unveiling religious truth. But as of right now, it has been impossible for us to conceive of empirical tests of any theories of divine origins. And it may be 10,000 years of trans-human innovation to acquire the necessary sub-perceptual "eye". Human single neuron activity precedes emergence of conscious perception https://www.nature.com/articles/s41467-018-03749-0 https://www.nature.com/articles/s41467-018-03749-0 In the short term, I can recommend starting in on the Wisdom Literature and other mystical sources. Begin your own experiments with truth in quotidian life. And pay heed to the minds who have attempted to describe their own ineffable experiences of yore. Best of luck! https://plato.stanford.edu/entries/mysticism/ https://plato.stanford.edu/entries/mysticism/