Madhvaon Brahma Sūtra 3.3.48

Not only by mere knowledge derived by study, etc., but by direct perception, i.e., sight of the Lord (resulting from such knowledge), release is to be obtained, as may be seen from the Kausika Sruti: “This perfect Lord binds down everybody with Maya (His Supreme power or will); only after having seen Him the soul obtains release, not by any other means.”