The Thunderbolt

Having made up his mind, Dadhyañc, the son of Atharvan, gave up his body, laying his self in the supreme Lord, in Brahman. With his senses and breath and mind held still, seeing the truth, his bonds broken, standing in the highest yoga, he did not even notice that his body was gone.

Then Indra took up the thunderbolt that Viśvakarman had made from the sage's bones, full of the sage's power and filled with the Lord's own fire. Seated on his elephant, surrounded by the gods and praised by the sages, he rode out against Vṛtra. In the fight he cut off Vṛtra's arms with the thunderbolt. Then the demon, vast beyond measure, set his lower jaw on the earth and his upper jaw in the sky, and came on, crushing the earth under his feet like a walking king of mountains, and he reached Indra and swallowed him whole, elephant and all, as a great snake swallows an elephant. The gods, the lords of creatures and the great seers saw it and cried out in despair, Alas, how terrible! But Indra, swallowed by the lord of demons and gone down into his belly, did not die, for he was armoured by the Supreme Person and by the power of his yoga. With the thunderbolt he split the demon's belly open and came out, and with all his might he cut off his enemy's head, like the peak of a mountain.