If the point of a cup is to drink from, the point of life is to have children who will live and have children. This is the perspective of evolutionary theory. In the evolutionary theory everything in the world exists to continue existing. Whatever and whoever is more effective at reproducing will continue living.
However what we choose to do with our time here on earth in between this kid making is interesting too.
Some may point out that the in between time is merely about making yourself a better candidate for more kids like getting a good job, making more money, and improving your looks to get a younger better looking spouse to have kids with.
What do you think? Does that sound meaningful? Does life need to be meaningful? Are we just a group of termites replicating and eating the entire world as we grow with our only mission to replicate?