Why Science may not be so "Scientific"

I think everyone's got some sort of destination that we have to reach sometime in our life. Its just how are we going to reach it. Yesterday's GP lecture knocked some questions into my mind. Is it possible to have impossible in our life? We are always living in a world where proof is needed to justify everything. But what if there are things which defy Science? What we must know is that we defined Science, but Science not neccessarily defines our world. There are too many unpredictables that Science is not able to explain. Science is just a language that humans use to explain some of our wonders.