How do Humans exist?

My previous post discussing about afterlife is more of a debatable post. Everyone of us has their own thoughts and thinking onto something. But how many of us wonder how do we exist into this beautiful world?

Universe is formed from the Big Bang Theory. But what is the event before Big Bang? Is it just a complete dark empty matter. For those who doesn't know what is Big Bang, it is reason how our Universe is formed and expanding through high temperature and velocity, causing a rapid explosion which explains the word Bang.

Galaxies are formed, with ours being named as the "Milky Way". Solar planets are formed, and us staying on "Earth" right now. But, how do we exist? Did the first ever human or ape just fell from the skies just like stars?

During prime time, at about million years ago, the very first human was evolved in Africa. As time goes by, humans went through reproduction causing more in numbers, some of them moved to Europe, then Asia before even the name of the continents are even invented.

The very theoretical definition on how humans or how life began on Earth remains a mystery, just like a Chicken or Egg theory.