One should say before sleeping,
“I have lived many lives. I have been a slave and a prince. Many a beloved had sat upon my knees and I have sat upon the knees of many a beloved.
Everything that has been shall be again“
W.B. Yeats
Bodhidharma said, “Expel all concurrent causes. Do not give rise to a single thought.”
This is an important part of our training. Concurrent causes are the ones we are carrying with us when we come to sit in meditation. Not giving rise to thoughts means not letting them carry us away. You are not your thoughts.
Daniel Scharpenburg, The Essence of Buddhist Training.