" Just as in the dream, the agitated mind creates a delusory dream world and the dreamer identifying himself with it takes it to be real and gains experience thereunder; so too in the waking state, the waker’s mind being agitated, projects itself to a world of delusory plurality and he gains therein his experience of a world, seemingly real for him for the time being. "

― Chinmayananda , Mandukya Upanishad with Karika: 1