CC Ādi 4.79

ākāra svabhāva-bhede vraja-devī-gaṇa
kāya-vyūha-rūpa tāṅra rasera kāraṇa
Word for word: 
ākāra — of features; svabhāva — of natures; bhede — with differences; vraja-devī-gaṇa — the gopīs; kāya — of Her body; vyūha — of expansions; rūpa — having the form; tāṅra — of Her; rasera — of mellows; kāraṇa — instruments.
Translation: 
The Vraja-devīs have diverse bodily features. They are Her expansions and are the instruments for expanding rasa.