Good luck, where did it come from and can we call it into our lives? As far back as history allows, people have believed in the concept of luck and have done whatever they could to attain it. From wearing lucky underpants, to lucky charms to knocking on wood; thought to date back to pagan rituals aimed at eliciting help from powerful tree gods. Even today some knock on wood after mentioning a hopeful future outcome, though few, if any, of us worship tree gods. So why do we pass this and other superstitions down from generation to generation? The answer lies in the power of luck.