Kauṣītaki Upaniṣad 3.3.20-22

3.3.20

śrotraṃ sarvaiḥ śabdaiḥ sahāpyeti /

When a person is so asleep that he sees no dream whatever, then he becomes unitary in this breathing spirit. Then speech together with all names goes to it; the eye together with all forms goes to it; the ear together with all sounds goes to it; the mind together with all thoughts goes to it.

3.3.21

manaḥ sarvair dhyānaiḥ sahāpyeti /

3.3.22

sa yadā pratibudhyate yathāgner jvalataḥ sarvā diśo viṣphuliṅgā vipratiṣṭherann evam evaitasmād ātmanaḥ prāṇā yathāyatanaṃ vipratiṣṭhante /

When he awakens—as from a blazing fire sparks would disperse in all directions, even so from this self (_ātman_) the vital breaths (_prāṇa_) disperse to their respective stations; from the vital breaths, the sense-powers (_deva_); from the sense-powers, the worlds.