follow the same course again

The sun is the source and the temporary resting place of its rays. The rays emanate from the sun and spread in all directions at the time of sunrise. They enter into the sun at sunset, lose themselves there and come out again at the next sunrise. Even so the state of wakefulness and dream come out from the state of deep sleep and re-enter it and lose themselves there to follow the same course again.- Swami Sivananda