When Mahaprabhu appears in the world, he does not defy convention. Thus he appears at the request of Advaita Acarya, the Mahavishnu of Gaura-lila.
In the following excerpt from Sermons of the Guardian of Devotion Srila Sridhara Maharaja begins to speak about some of the numerous events that make Vasanta-pancami an especially holy day.
There is a mantra for the worship of the cows. There is a mantra for herding the cows. Krishna was a cowherd, that is why he has names like Gopal and Govinda. Krishna protected all the cows himself.
Although gurus are not God, neither are they to be considered as merely atomic souls bound in the net of material illusion. Gurus are servants of God as are all souls, yet they are servants who have realized the truth of their eternal servanthood.