For me, prayer is a lifting up of the heart, a simple glance towards Heaven, a cry of gratitude and love in the midst of trial as well as joy. It is something great, supernatural, which expands my soul and unites me to God.
The grosser consciousness depends heavily on particles of matter. The subtler consciousness is more independent -- it does not depend so much on the brain. Luminance, radiance, imminence -- the three states of subtle mind -- all of these disappear in the clear Light, the innermost consciousness.