Who am I and for what purpose do I exist? How did we appear here and where are we going? Is it possible that we have already been in this world before? Can we know ourselves and the universe? Why does man suffer and is it possible to avoid suffering? How can one find peace, satisfaction, and luck? How can we attain tranquility, fulfillment, and happiness?
Many people in every generation attempt to find answers to these persistently haunting questions, and the very fact that this happens from generation to generation demonstrates that we still have not found satisfactory answers. Studying nature and the cosmos, we find that all that surrounds us exists and functions in accordance with strict, purposeful laws. Regarding ourselves as the crown of nature’s creation, we find humanity to be as if it were outside this system. For instance, seeing in the wise and logical manner nature created each part of our organism, seeing the precise purpose in the functioning of each cell of the body, we are unable to answer the question: what is the purpose of this entire living organism?
http://www.youtube.com/watch?v=WPodvGwHnKY