SB Cantos 10.14 to 12 (Translations Only)
The gopīs senses were overwhelmed by the joy of having Kṛṣṇa's physical association.
SB 10.33.17, Translation: Their senses overwhelmed by the joy of having His physical association, the gopīs could not prevent their hair, their dresses and the cloths covering their breasts from becoming disheveled. Their garlands and ornaments scattered, O hero of the Kuru dynasty.
Physical association is not so important as preceptorial association.
Letter to Govinda -- Los Angeles 17 August, 1969: You write that you have desire to avail of my association again, but why do you forget that you are always in association with me? When you are helping my missionary activities I am always thinking of you and you are always thinking of me. That is real association. Just like I always think of my Guru Maharaja every moment, although He is not physically present, and because I am trying to serve Him to my best capacity, I am sure He is helping me by His spiritual blessings. So there are two kinds of association: physical and preceptorial. Physical association is not so important as preceptorial association. So try to preach this Krishna Consciousness Movement amongst the hippies there, and simply induce them to chant Hare Krishna. If they kindly join in chanting Hare Krishna, that will make our movement successful.