As one contemplates, penetrating deeper and deeper into the nature of reality, one leaves the sensible world behind, transcends the subject/object mode of perception, and experiences one's soul.
Solitude is an attitude of gratitude ... It is a state of mind, a state of heart, a whole universe unto itself. The early contemplatives in all traditions knew this secret of happiness -- that being alone was a great gift. And whether or not we sit upon the mountain top or kitchen stool, whether we seek a sacred place or simply stir the soup, the message is the same. For what does it mean to be alone, if not to be all one. To be who you are already in your deepest self, to be happy.