Madhvaon Brahma Sūtra 1.3.8

For the perfect one is described as ‘ bliss'itself ’ in the Sruti, thereby showing that He essentially consists of blessedness ; and He is also spoken of as “ the exalted over all other things.” Hence the perfect one can only be Vishnu. And Vishnu is known to be of absolutely blessed character, from the text, “ The world depends upon the Lord who has a thousand heads, who is most brilliant, who sees all, who is the abode of perfect blessedness, who is (pervades) the whole world, who is Narayana, the resort of the released, who is the imperishable, who is concluded to be the highest, who is the goal, who is superior to all the deities, who is of unchangeable per- son. (Mn. n). “ Him departing, Prana departs after.” (Bri. (Vl-iv. 2). This and other texts show that there is no difficulty caused even by the characteristic of departing, etc. (For the omnipresent Lord may still be predicated of going out, etc-, in virtue of His inconceiveable powers).