There are differing world views about how we got here and the purpose of life. In the Western world it's interesting to me that we can observe the exact same evidence and come to completely different conclusions based on those views.
Take for example the movement of our earth through space: The earth revolves once every twenty-four hours. The speed of it's rotation at the equator is about 1,040 mph or roughly half a kilometer per second and goes to practically zero at the poles. As the earth rotates, it's moon also rotates with such absolute perfect timing that man has only observed one side of it's surface from any point on earth. We see the same side of the moon as Moses and the ancient Pharoahs of Egypt. Earth orbits the star in our solar system, our sun, once a year at an average speed of 18.5 miles per second (or 30km/ second). Our solar system, which is about 26,000 light years from the center of our Galaxy, the Milky Way, makes one complete revolution of the Galaxy about every 200-250 million years at an average speed of 155 miles per second (250 km/sec.)The Milky way Galaxy is just one galaxy in a group of galaxies called the Local Group. Within the Local Group, the Milky Way Galaxy is moving about 185 miles/sec (300 km/sec).An atheist would look at that and say, it's all coincidence! As a believer with a biblical world view I look at it and say with King David of old, "When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained; What is man, that thou art mindful of him? and the son of man, that thou visitest him?" When I see universal law, I see the fingerprint of a universal law giver. So you see, in my world view, God exists and I see His love and plan working continually. An unbeliever sees in their world view dumb luck and blind chance without a cause to account for the existence of everything. You may not believe in a god but we all believe something. Amazingly in the Bible book of Job, one of the oldest books in the Bible says God "hangs the earth on nothing;" - Job 26:7. Atheists and Christians are like anyone else in that we all have our troubles. We all go through life and face crises. We are all going to die. The difference is that the Christian has a blessed hope of an eternal day. That's what Jesus guaranteed when He said,
"Let not your heart be troubled: ye believe in God, believe also in me.In my Father's house are many mansions: if it were not so, I would have told you. I go to prepare a place for you.And if I go and prepare a place for you, I will come again, and receive you unto myself; that where I am, there ye may be also." - John 14:1-3.