why we are here?

A very rare or may be a common question is striking in my mind from very childhood. why we are here in this world. our birth is just because of in order to order money or living or something else. this question is disturbing each day and as life is going on I am very much curious to know the answer to this question.

one day I come in the influence of a person I even do not know him, he was just sitting outside of my home and asking for someone. I just come out and ask what you want. you would not believe that he told me that I am here to answer your question. I get confused and asked what question you are talking about he told me why you are here in this world.

he just told me you are here to work for humanity nothing else. whatever you have help with that to others. this is the reason why you and all are here.