Praśna Upaniṣad ("Six Questions") 4.4.p1

4.4.p1

atraiṣa devaḥ svapne mahimānamanubhavati

5. There, in sleep, that god experiences greatness. Whatever object has been seen, he sees again; whatever has been heard, he hears again. That which has been severally experienced in different places and regions, he severally experiences again and again. Both what has been seen and what has not been seen, both what has been heard and what has not been heard, both what has been experienced and what has not been experienced, both the real (sat) and the unreal (a-sat)—he sees all. He sees it, himself being all.