What are you doing?

When I look at a tree like this I wonder what is it trying to do? Why is it growing to such a large size? In a few years it will die and what will have been the point of it? It will make some seeds and the children of the tree will grow large and make seeds too. Really what is the point? Now that I think about it I am kinda doing the same thing. There must be some point to all this but I sure don’t know what it is. But I would not want to miss it.