All great questions must be raised by great voices, and the greatest voice is the voice of the people - speaking out - in prose, or painting or poetry or music; speaking out - in homes and halls, streets and farms, courts and cafes - let that voice speak and the stillness you hear will be the gratitude of mankind.
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.