Consciousness Deluded by the Ego

Nature alone does every kind of action. Action, by definition, is within the realm of nature. One who sees this sees that i am not the doer. I am the witness of actions going on in nature. The ego feels that it does all these things. Why does it feel that that's its function? Again, vedanta sara aviman atmicaanta karnavitia hankara,. ego is that which is of the nature of appropriation.