WHY?

Why do we behave the way we do? Why is it that we consume substances that effect the way we behave? Sometimes I sit and wonder these things. Have you ever had a day where you felt like you were on top of the world? What about one of those days where nothing could go right? Are these truly happening or is it all in are insanely complex mind? At times it seems like life is so easy but then again it is. What is it we in truth need? Very little when you break it down. Of course what we want is a whole nother story. Why? Why do we desire the things we do? Is it all advertising and peer pressure that influences us and makes us crave? Do my 265 dollar jeans really look that much better then my 30 dollar pair? Does generic dish soap work as well as name brand? I think we will never know why, but this is what makes us human. We ask why?