A lecture on Caitanya-caritāmṛta, Ādi-līlā 4.259, given by Sri Srimad Gour Govinda Swami, 27 April 1989, Bhubaneswar, India.
When Rādhā and Kṛṣṇa descended in this world 5,000 years ago and were manifesting Their transcendental loving pastimes in Vṛndāvana, They were often playing in the water of the Yamunā River, jala-kṛdā. So the Yamunā is very, very fortunate.
However, here Raghunātha dāsa Gosvāmī says something else. He says that Rādhārāṇī takes Her bath in nectar. What type of nectar? Kāruṇyāmṛta, tāruṇyāmṛta, and lāvaṇyāmṛta. Kārunya means ‘mercy’. Mercy is like nectar. She takes Her bath in that nectar, kārunyāmṛta, before noon. Tāruṇyāmṛta is also like nectar. Taru means ‘youth’. And Rādhārāṇī takes Her bath in that nectar at noon. Then lāvaṇyāmṛta, lāvaṇya means ‘beauty’. That is also like nectar and She takes Her bath in that nectar in the afternoon. This has a very, very deep meaning; it is very difficult to understand.”