Let-go is a deep understanding of the phenomenon that we are part of one existence. We cannot afford to have separate egos; we are one with all. And the all is vast, immense.
Your understanding will help you to go with the whole, wherever it is going. You don´t have a goal separate from the whole, and the whole has no goal. It is not going anywhere.
The understanding of let-go helps you to be simply here, without any goals, without any idea of achievement, without any conflict, struggle or fight, knowing that it is the fighting with yourself which is simply foolish.