…The exemplary character of devotional service manifested by the devotees of Vṛndāvana is the purest type of devotion. It is enjoined in authoritative śāstra that devotional service must be ahaituka and apratihata. This means that devotional service to Kṛṣṇa cannot be checked by political or religious convention. The stage of devotional service is always transcendental. The gopīs particularly showed pure devotional service towards Kṛṣṇa, so much so that Kṛṣṇa Himself remained indebted to them. Lord Caitanya thus said that the devotional service manifested by the gopīs in Vṛndāvana excelled all other methods of approaching the Supreme Personality of Godhead.
Kṛṣṇa The Supreme Personality of Godhead 1970 Edition
By His Divine Grace A.C. Bhaktivedanta Swami Prabhupada
Vol.1, Chapter 31
Songs by the Gopīs
One gopī said, “My dear Kṛṣṇa, ever since You took Your birth in this land of Vrajabhūmi, everything appears to be glorious. The land of Vṛndāvana has become glorious, and it is as if the goddess of fortune is personally always existing here. But it is only we who are very unhappy, because we are searching for You, but cannot see You with our greatest effort. Our life is completely dependent upon You; therefore we request that You again come to us.”
The Hare Krishna Movement 