You do not have to choose to be a child of the universe; you are. What you must choose is to reject the guidance of your ego-mind on all things, because your ego-mind is not a function of your true self. It is a creature of what the outer world has done to you, your life experiences. Chose to not allow your ego-mind to pull you away from your natural state, and so maintain your peace and happiness.
It is a choice. It takes awareness and courage. But it is a choice, and a very effective one.