The theory of Drstisrsti, though it seems to be a tiny one, is a tough problem in the Advaita-vedanta. This is associated with the name Prakasananda to that extent that he himself is considered to be the father of this theory. Infact, he is both the father and mother to this; yet the germinating points of this theory are pretty old as they can be traced in the Yogavasistha, Brahma-siddhi and Istasiddhi. It is Prakasananda, a master-mind who elevated this theory ...