Why do we exist? What is the purpose of humanity?

Humanity is part of nature, and nature is part of the world, which in turn is part of the universe. That part is easy. Now, according to cosmology, everything came from a singularity. In other words, the universe was born from a singularity. The Big Bang is basically a singularity. Compare it with the sea: the sea has many waves, but all waves are the sea. The same is true for the universe. Now we get to the good part: Why are there waves? Or why is there life? That’s easy, really. It’s simply more enjoyable to have company, to have friends, family, a cat or a dog, a partner. So, the reason why we exist is basically for each other, to have a friend, a companion.~ Wald Wassermann