Madhvaon Brahma Sūtra 1.2.13

He who is in the eye is only Vishnu. From the texts such as, “ The three immortal feet of His are in heaven,’ (Rv. x. 90.3), immortality, etc. (and other charac- teristics) only point to Him,” ; and also on account of the propriety of the use of the words Brahman, etc.> (Vishnu is the dweller within the eye, etc). * He is I ’ and other texts have proceeded with refer ■ euce to the Lord as the inner guide. It is said in the Mahakaurtna, “ It is with reference to the Lord of lords that directs frofn within, that the words, * I,’ ‘ He,’ ‘ Thou/ are used. In fine, all the words are used (to denote the Lord within), though the things themselves may differ.