Brahman in Taittiriya Upanishad to sage Bhrigu. First six anuvakas of Bhrigu Valli are called Bhargavi Varuni Vidya, which means "the knowledge Bhrigu got from (his father) Varuni". It is in these anuvakas that sage Varuni advises Bhrigu with one of the oft-cited definition of Brahman, as "that from which beings originate, through which they live, and in which they re-enter after death, explore that because that is Brahman". This thematic, all encompassing, eternal nature of reality and existence develops as the basis for Bhrigu's emphasis on introspection, to help peel off the outer husks of knowledge, in order to reach and realize the innermost kernel of spiritual Self-knowledge. Ramayana Rama interacts with Varuna in the Hindu epic Ramayana. For example, faced with the dilemma of how to cross the ocean to Lanka, where his abducted wife Sita is held captive by the demon king Ravana, Rama (an Avatar of Vishnu) performs a pravpavesha (prayer, tapasya) to Varuna, the Lord of Oceans, for three days and three nights, states Ramesh Menon. Varuna does not respond, and Rama arises on the fourth morning, enraged. He states to his brother Lakshamana that "even lords of the elements listen only to violence, Varuna does not respect gentleness, and peaceful prayers go unheard". With his bow and arrow, Rama prepares to attack the oceans to dry up the waters and create a bed of sand for his army of monkeys to cross and thus confront Ravana. Lakshmana appeals to Rama, translates Menon, that he should return to "peaceful paths of our fathers, you can win this war without laying waste the sea". Rama shoots his weapon sending the ocean into flames. As Rama increases the ferocity of his weapons, Varuna arises out of the oceans. He bows to Rama, stating that he himself did not know how to help Rama because the sea is deep, vast and he cannot change the nature of sea. Varuna asked Rama to remember that he is "the soul of peace and love, wrath does not suit him". Varuna promised to Rama that he will not disturb him or his army as they build a bridge and cross over to Lanka. Although, most of the sources claim it was Samudra, the god of the oceans who met Rama not the water god Varuna. In Tolkappiyam The Tolkāppiyam, a Tamil grammar work from 3rd century BCE divides the people of