Krsna then spoke to His elder brother Balarama as follows: “My dear brother, You are superior to all of us, and Your lotus feet are worshiped by the demigods. Just see how these trees, full with fruits and flowers, have bent down to worship Your lotus feet. It appears that they are trying to get out of the darkness that has obliged them to accept the form of trees. Actually, the trees born in the land of Vrndavana are not ordinary living entities. Having held the impersonal point of view in their past lives, they have been put into this stationary condition of life, but now they have the opportunity of seeing You in Vrndavana, and they are praying for further advancement in spiritual life through Your personal association. Generally, living entities in the mode of darkness obtain the bodies of trees. The impersonalist philosophers are in that darkness, but they eradicate it by taking full advantage of Your presence.

I think the drones that are buzzing all around You must have been Your devotees in their past lives. They cannot leave Your company because no one can be a better, more affectionate master than You. You are the supreme and original Personality of Godhead, and the drones are just trying to spread Your glories by chanting at every moment. I think some of them must be great sages, devotees of Your Lordship, and they are disguising themselves in the form of drones because they are unable to give up Your company even for a moment. My dear brother, You are the supreme worshipable Godhead. Just see how the peacocks are dancing before You in great ecstasy. The deer, whose behavior is just like that of the gopis, are welcoming You with the same affection. And the cuckoos who are residing in this forest are welcoming You with their joyful, sweet cries because they consider that Your appearance in their home is so auspicious. Even though they are trees and animals, these residents of Vrndavana are glorifying You. They are prepared to welcome You to the best of their ability, as is the practice of great souls in receiving another great soul at home. As for the land, it is so pious and fortunate because the footprints of Your lotus feet are marking its body.”

From Krsna Book chapter 15, by Srila Prabhupada