CC Madhya 9.133
vrajeśvarī-suta bhaje gopī-bhāva lañā
The authorities in the Vedic literature who are known as the śruti-gaṇas desired to enter into Lord Śrī Kṛṣṇa’s rāsa dance; therefore they began to worship the Lord in the ecstasy of the gopīs. In the beginning, however, they were unsuccessful. When they could not enter the dance simply by thinking of Kṛṣṇa in the ecstasy of the gopīs, they actually accepted bodies like those of the gopīs. They even took birth in Vrajabhūmi just like the gopīs and consequently became engrossed in the ecstasy of the gopīs’ love. In this way they were allowed to enter into the rāsa-līlā dance of the Lord.