trayyā sa vidyayā rājñā

jāta-vedā vibhāvasuḥ

trayyā sa vidyayā rājñā

putratve kalpitas tri-vṛt

From Purūravā's rubbing of the sticks came a fire. By such a fire one can achieve enjoyable objects. Purified by the knowledge of the three Vedas, the fire was considered the son for the King and took three forms.

From rubbing the sticks together he produced the fire, which then produced enjoyable objects (dhanam). The fire was purified by the knowledge of the three Vedas, and was thought of as a son for the King, since it allowed him to go to Svarga. Trivṛt means the fire in three forms: āhavanīya, gārhapātya and dakṣiṇāgni.

|| 9.14.47 ||

tenāyajata yajñeśaṁ

bhagavantam adhokṣajam

urvaśī-lokam anvicchan

sarva-devamayaṁ harim

By means of that fire, Purūravā, who desired to go to the planet where Urvaśī resided, performed a sacrifice, by which he satisfied the Supreme Lord, master of sacrifices, who is beyond material senses and constitutes all the devatās.

 

|| 9.14.48 ||

eka eva purā vedaḥ

praṇavaḥ sarva-vāṅmayaḥ

devo nārāyaṇo nānya

eko 'gnir varṇa eva ca

Previously there was one Veda, and oṁ was the principal mantra. Nārāyaṇa was the only deity. There was one fire and one varṇa.

“Was the method of karma mentioned in the three Vedas not existing previously?” It was not revealed previously.  The verses explain the situation. Previously, in Satya-yuga, oṁ was the seed of all verses. There was one Veda, and Nārāyaṇa was the one deity. There was one fire (not three), and one varṇa called hamṣa, since generally everyone was predominantly in sattva-guṇa, engaged in meditation.

 

|| 9.14.49 ||

purūravasa evāsīt

trayī tretā-mukhe nṛpa