Mixed Emotions

I believe that every action every living being makes in their lifetime affects the entire universe in some way. How could it not? Everything you do that causes energy including each movement, word, thought, causes a reaction of some sort in the universe. When you think about it at length we have all created each other and everything around us throughout evolution. The earth took a part. The galaxy took a part. Everything took a part of something. We are all connected. It's such a beautiful realization and yet, so obvious. At the same time it is terrifying. In the midst of this beautiful thought I remember I'm connected and a part of everyone and thing that disgusts me as well. If every positive thought has a reaction then so must every negative thought. Both must be necessary for some reason. As disappointing as that seems, it gives me hope. It gives us control. How do you get on the path to enlightenment? How can we overcome the fear and ignorance that holds us back from a potential not even imaginable at our current brain capacity? In the end are the things we fight for worth it? Whose battle is it really? Now I'm all over the place, I know. New found hope always fills me with endless questions that in the end just cause mixed emotions.