The meaning of life may be a serious topic but I've just got some idea on it and want to share with you to see how you think.
People always say new lives give hopes. Actually, the "hopes" are just for the others but not the "new lives" themselves. So I think the nature of lives are totally for contributing to the world.
We eat, sleep, do exercise, etc are just for us to live longer as can contribute more to the world. Living objects have the instinct of wanting to survive but we don't have the instinct to contribute to others. That's why there is something called money.
We work for money{hopefully as well as interest, but I guess at least if you don't get paid, you won't work as hard as now). We need money to survive. But we contribute to the world through our work. Like trees, they produce oxygen through the photosynthesis just for surviving. But oxygen is exactly what the world need. We work for ourselves and ends up we help the world. That's what I think how the world works.
