definition of life as a human, wat exactly it is?

Life, as I start asking myself, what does it really means? Where does it leads me to? Is it just like what other church-goers said, a path or guidance that was laid by God before we even step foot on earth? What is destiny? What is dream? As all these questions loom around my head, spinning, crying for an answer to what it truly means, I still couldnt quite understand what exactly the meaning of me being here, the planet named Earth since before ancient times.

While I start to ponder about my meaning of existence, I came across a show entitled "The Journey To The Center Of The Universe" on National Geographics channel. It was really interesting as it exposed me to the knowledge of knowing how seriously VAST is the universe actually is. I was glued to the tv for 2 whole hours just for the show and I still can't get enough of it actually. Now, it made me wonder how small we human beings are compared to the size of the universe that only can be measurable in light years (just got to know that 1 light year = 1000km). We seem to be as small as an atom that are just pulled to the grounds by Earth's magnetic force. We wont even be able to see humans from outer space just like we cant see microorganisms with naked eye.

Now think again, how exactly humans are borned? Through millions or billions or even trillions of years of evolutionary changes? Then, how exactly we, living things (includes all species on earth) actually grown to be able to hv such complex systems in our bodies? Does it mean that "we" naturally adapt to the environment by natural selection that i studied in school?Or was it some other factors contributing to our existence now? Just like the story of Adam and Eve. Nonetheless, it is so fascinating to think that our life might actually began from non-living elements or maybe microorganisms that are stucked inactive on asteroids which then collides with other asteroids and slowly form our home, and when the earth warms up to a temperate weather, microorganisms starts to multiply and evolve into a more matured and steady form of organism ie. multicells creatures. Steadily obtaining nutritious elements from the soil and air to continue evolving. Everything seems to placed perfectly...the distance from the sun which makes earth habitable, or else we will hv died of extreme hotness or frozen to death...more like...we could not even start our stories of life. Are all these planned by God? Or do we just based on the Big Bang theory?

Whenever I talk about this topic, it is so wide that I can't cover all with my limited capacity of knowledge that I have now. I doubt I might not even be able to fully understand it throughout my life. From God beliefs to science, meditation to prayers, till now, no one can truly explain the incidents and also the purpose of man-kind of earth. We all know that one day...in the future, the earth and also our galaxy (Milkyway) will also reach its golden age and die. Will our man-kind survive? Or just perish into thin air together with our past and future, with not even a single clue that we "humans" do once exist? I really hope that I can find an answer to the questions before I exhaled by last breath on earth. Or perhaps...I will only know the answer during my after-life? Who knows..haha. But all I know is that I have to keep believing that there is a reason to all these happenings around the world. Maybe it is just according to what a book stated, God put us here, to learn, to experience, to feel, whether if its emotionally or physically so that when we return to His side, we will be able to tell our stories.