pita-father; aham-I; asya-of this; jagatah-of the universe; mata-mother; dhata-supporter; pitamahah-grandfather; vedyam-what is to be known; pavitram-that which purifies; omkarah-the syllable om; rk-the Rg-veda; sama-the Sama-veda; yajuh-the Yajur-veda; eva-certainly; ca-and.