Na tasya karyam karanam ca vidyate, na tasya samah adhikas ca drsyate. This is the definition of God, that He has nothing to do personally. When Krsna kills the demons outside Vrndavana, He is not original Krsna; He is Vasudeva. Vasudevah sarvam iti [Bg. 7.19]. When Krsna is acting universally, that is Vasudeva. Original Krsna is always in Vrndavana.

Jayatirtha: If the original Krsna is always in Vrndavana, then why do the gopis and Radharani feel separation from Him?

Prabhupada: That is here, in this material world. In the spiritual world Krsna does not leave. And even in the material world, Krsna superficially has gone to Mathura, but He has captured the heart of the gopis. So He is not leaving. Gopis are enjoying Krsna by separation. [pause] That is Caitanya Mahaprabhu’s feeling, how He is appreciating Krsna by separation.

Morning Walk — July 17, 1975, San Francisco