CC Madhya 8.203

sakhī vinā ei līlā puṣṭa nāhi haya
sakhī līlā vistāriyā, sakhī āsvādaya
Synonyms: 
sakhī vinā — without the gopīs; ei līlā — these pastimes; puṣṭa — nourished; nāhi haya — are never; sakhī — the gopīs; līlā — the pastimes; vistāriyā — expanding; sakhī — the gopīs; āsvādaya — taste this mellow.
Translation: 
“Without the gopīs, these pastimes between Rādhā and Kṛṣṇa cannot be nourished. Only by their cooperation are such pastimes broadcast. It is their business to taste the mellows.