gopī-gaṇa-madhye — of all the gopīs; śreṣṭhā — the chief; rādhā-ṭhākurāṇī — Śrīmatī Rādhārāṇī; nirmala — purified; ujjvala — brilliant; rasa — in mellows; prema — of ecstatic love; ratna-khani — the jewel mine.