The System of the Vedanta according to Badarayana's Brahma-Sutras and Cankara's Commentary c8.s7.t2.6

The System of the Vedânta according to Bâdarâyana's Brahma-Sûtras and Çankara's Commentary c8.s7.t2.6

Just as deep sleep is an entrance into Brahman, so awaking out of it is a withdrawal from him (p. 795, 15).