" The cause of pain is separation, not the body, which is only its effect. Yet separation is but empty space, enclosing nothing, doing nothing, and as unsubstantial as the empty place between the ripples that a ship has made in passing by. And covered just as fast, as water rushes in to close the gap, and as the waves in joining cover it. Where is the gap between the waves when they have joined, and covered up the space which seemed to keep them separate for a little while? Where are the grounds for sickness when the minds have joined to close the little gap between them, where the seeds of sickness seemed to grow? "

- Jesus Christ in A Course in Miracles, Chapter 28, III