Nârada also helped the cause in another away. He related the beauty and âgavataPurâthe virtues of king Purûravas to the Devas in Svarga. Urvasi, the famous Deva nymph, hearing all that, became enamoured of the king. She had then, by the curse of some god, a human form. So she could keep company with the King. The king was enchanted by her beauty. When she left, he followed her advice and pleased the Gandharvas. The Gandharvas gave him the fire, with which the king could perform sacrifice. The fire became threefold. With one he could perform his duties to the Devas and go to Svarga Loka. With another, he could perform his duties to the Pitris. With the third fire, he could perform the duties of a house-holder. Thus sacrifices meant duties. And it is by the performance of duties that men can perform Vedic sacrifices and go to Svarga Loka.
The Vedas laid down injunctions and prohibitions. They regulated the actions of men, propelled by Kâma or desire. Men must eat meat. The Vedas said this meat was prohibited, but that could be used. Men mixed with women. The Vedas laid down restrictions. Even they regulated the relations between man and wife. Then the Vedas laid down the duties which men owed to all classes of beings. In order to induce men to accept the Vedic injunctions, the Vedas held out Svarga as the reward of Vedic Karma. They even favoured the belief, that there was to be immortal life in Svarga gained by the performance of Vedic Karma. Detailed rules as to the performance of Vedic sacrifices were given. So long as men did not aspire to become Indra, or the ruler of Svarga, the Devas were pleased with the sacrifices; they helped the performer as much as they could, giving them all objects of desire, and they welcomed them to Svarga, when they passed to that plane after death. The Devas were as friendly to the performer of Vedic Karma as they were unfriendly to the immature Trisanku.
The Vedic Karma Kânda became thus fully revealed. The revelation was made in the last Treta-yuga of the present Manvantara. "At the beginning of the Treta Yuga, the three Vedas were revealed through Pururavas." IX. 14-49. "The path of Karma was promulgated in Treta Yuga, by the division of the Vedas." _Sridhara_.