Life - A philospohical Approach!

Many a times I wonder and ask myself a question - What is life? For What we are here for? What are we supposed to do with it?
These questions are really very common and I am sure that many of us may have asked these in one form or the other. These kind of questions generally come into our mind when we are upset or you may say when you feel low. But in general we must always remember to ask our self, Why are we here? By only keeping this question in mind we cannot expect deviation from our path which we lead in life. I strongly feel that we are here for some very important tasks to perform. The attitude towards life determine "tasks" which you need to do or ought to do in life. For some people happiness lies in their children(like my parents), for some life means struggle they always strive hard to succeed, for some like me success means happiness. Now the question comes "everybody is happy, what's new in this? ", but I would like to make a point that there are many people in this world who are not at all happy. They do their work, they have families also, they do everything except finding ways to stay happy.
Doctors also give stress on this particular thing, they ask their patients to stay happy and keep off all the worries from their life. Though this is merely a theoretical aspect but still one can try to stay happy as much as possible in his/her life. There are only pros for this particular way of leading life and as far as I know it is perfectly harmless. So if you are reading this blog, I heartily pray for you to stay happy always and may God bless you with all the happiness in your life.