The System of the Vedanta according to Badarayana's Brahma-Sutras and Cankara's Commentary c8.s7.2

c8.s7.2

We shall now consider these three states on the basis of the material afforded by the appendix 3, 2, 1—10 supplementary to the *Psychology*, prefixing a brief definition of them from p. 107, 12 ff.: "the soul is awake, when, in consequence of its connection with the various *Upâdhis* [the ten *Indriyas*] which proceed from the *Manas*, it apprehends sensuous objects and examines their differences;—when, modified by the impressions¹²⁰ of these, it sees dream-pictures, it is [occasionally, *viz.* Chând. 6, 8, 2, above p. 263] described by the word *Manas* [in the dream-state the senses repose, while the *Manas* remains active, above p. 320]; in the state of deep sleep in which the two kinds of *Upâdhis* [*Indriyas* and *Manas*, or, as Govinda maintains: the coarse and fine] are in repose, and the differences conditioned by the *Upâdhis* cease to exist, the soul is as it were dissolved (*pralîna*) in its own self and therefore "it is said: it has entered into itself (Chând. 6. 8. 1, above "p. 263)."