Tao Te Ching

“Sleep is a time of rest. Why spend this time worrying? When there is no self, there will be no dreams.”

— Lie Yukou 列圄寇/列禦寇/列子 1 via Zhang Zhan (370 CE) / Eva Wong
(Liè Yǔkòu, Liezi)
from Liezi "True Classic of Simplicity and Perfect Emptiness”