The Reason to our Actions

Everyday, our lives are filled with actions that we do systematically. I believe that the reason to this is subconciousness. The inner self, id, tells us to do things. Id itself is trained by outer factors and inner factors, thus society at whole is responsible for what our subconciousness tells us to do.
Biologically we are our own brain. Our conciousness gives us an outward feeling, and thus it is related to why some of us believe there is a soul in each of us. Our conciousness tells us that we are what we see, but all we really are, as in our personality, is the brain. Thus, since we "are our own brain", I believe that chemical signals trigger the brain's responses too. The subconciousness triggers chemicals that cause wants and needs experienced in conciousness. Thus the subconciousness causes the conciousness in us.
Nature and nurture are major parts of our lives too. As animals we are tempted to satisfy our feelings, like fighting, arguing, stealing, etc. All the same, culture also affects how we act. Some cultures are taught with military standards and some cultures stress on morality. A child with a parent who doesn't really tell the child right from wrong or introduces the child at a very young age could be rather violent, while parents who are strict or stresses on morality could bring up a child of peace.