'This indeed is his (true) form, free from desires, free from evil, free from fear. Now as a man, when embraced by a beloved wife, knows nothing that is without, nothing that is within, thus this person, when embraced by the intelligent (pragna) Self, knows nothing that is without, nothing that is within. This indeed is his (true) form, in which his wishes are fulfilled, in which the Self (only) is his wish, in which no wish is left,—free from any sorrow.

In plain words: In deep sleep a person shows their true nature: free of wanting, free of wrong, free of fear. Just as someone held by a loved one forgets everything inside and outside, the person held by the knowing Self is aware of nothing else. There every wish is fulfilled, no wish is left, and there is no sorrow.