15.2 The 'secondary roots' of this tree having the main roots in the world of Brahman and its crest in men ramify below in the world of men. They bind them according to their Karma. The meaning is that the effects of acts causing bondag become roots in the world of men. For, the effect of actions done in the human state brings about the further condition of men, beasts etc., down below, and of divinities etc., up above.