To let go means to give up coercing, resisting, or struggling, in exchange for something more powerful and wholesome which comes out of allowing things to be as they are without getting caught up in your attraction to or rejection of them, in the intrinsic stickiness of wanting, of liking and disliking.
Ego is the movement of the mind toward objects of perception in the form of grasping, and away from objects in the form of aversion. This fundamentally is all the ego is. This movement of grasping and aversion gives rise to a sense of a separate “me,” and in turn the sense of “me” strengthens itself this way. It is this continuous loop of causation that tricks consciousness into a trance of identification. Identification with what? Identification with the continuous loop of suffering. After all, who is suffering? The “me” is suffering. And who is this me? It is nothing more than a sense of self caused by identification with grasping and aversion. You see, it’s all a creation of the mind, an endless movie, a terrible dream. Don’t try to change the dream, because trying to change it is just another movement in the dream. Look at the dream. Be aware of the dream. That awareness is It. Become more interested in the awareness of the dream than in the dream itself. What is that awareness? Who is that awareness? Don’t go spouting out an answer, just be the answer. Be It.