Why are you here??

During the weekend, celebrating, resting , speaking and thinking, some questions came to my mind , why I'm here? Why other people here? Why we, being 21 -24 came to one place, one house, enjoying work that seems to our friends "lost time", still we are here, far from our homes, not able to see family, working together, living together, eating together...
Why?
Is that about development? Maybe, or because of spirit, uniqueness of AIESEC?
Don't think that i feel bad right now writing this post, I enjoy my life here, but it's just a question I cannot give the answer for now ...

and Why are you here??