How do you see or experience God?
From the piece:
Sooner or later, with this intensive practice, for some of the congregants, the mind may leap from imagination to hallucination, and the congregant hears God, sees God, feels God walking beside them. These yearned-for voices and visions have the reality of perception, and this is because they activate the perceptual systems of the brain, as all hallucinations do. These visions, voices, and feelings of "presence" are accompanied by intense emotion -- emotions of joy, peace, awe, revelation. Some evangelicals may have many such experiences; others only a single one -- but even a single experience of God, imbued with the overwhelming force of actual perception, can be enough to sustain a lifetime of faith. (For those who are not religiously inclined, such experiences may occur with meditation or intense concentration on an artistic or intellectual or emotional plane, whether this is falling in love or listening to Bach, observing the intricacies of a fern, or cracking a scientific problem.)
In the last decade or two, there has been increasingly active research in the field of "spiritual neurosciences." There are special difficulties in this research, for religious experiences cannot be summoned at will; they come, if at all, in their own time and way -- the religious would say in God's time and way. Nonetheless, researchers have been able to demonstrate physiological changes not only in pathological states like seizures, OBEs, and NDEs, but also in positive states like prayer and meditation. Typically these changes are quite widespread, involving not only primary sensory areas in the brain, but limbic (emotional) systems, hippocampal (memory) systems, and the prefrontal cortex, where intentionality and judgement reside.