(12×16 in)

The inclination to be solely attached to serving Śrī Rādhā is described in Vilāpa-kusumāñjali (16):

pādābjayos tava vinā vara-dāsyam eva nānyat kadāpi samaye kila devi yāce
sakhyāya te mama namo ’stu namo ’stu nityaṁ dāsyāya te mama raso ’stu raso ’stu satyam

O Devī {Goddess}, I have no desire other than for the topmost attainment of servitude to Your lotus feet. I forever offer obeisances to the position of being Your sakhī, but may I remain firmly attached to being Your maidservant. I speak this as a solemn vow.

Śrī Bhajana-rahasya (5.18)