The interpretation of this legend is a philosophy in itself. It is man himself who is the tree of fulfillment of his desire, and the root of this tree is in the heart of man. The trees and plants with their fruits and flowers, the beasts with their strength and power, and the birds with their wings, are unable to arrive at the stage which man can reach; and it is for this reason that he is called 'man', which in Sanskrit has the same root as the word 'mind'.