Kathopanishad (Madhva commentary) — Chapter 1 – Third Valli
Mantra 3.1. 1. There are the two (aspects of the Lord) the Drinkers of truth, existing in the body obtained by good works, both dwelling in the cavity of the heart, in the most highly splendid Param (i.e., Vāyu). The knowers of Brahman and those who perform the five great Sacrifices and observe the triple…