208. The blissful sheath has its fullest play during profound sleep, while in the dreaming and wakeful states it has only a partial manifestation, occasioned by the sight of agreeable objects and so forth.
209. Nor is the blissful sheath the Supreme Self, because it is endowed with the changeful attributes, is a modification of the Prakriti, is the effect of past good deeds, and imbedded in the other sheaths which are modifications.
Source: Vivek Choodamani