Two places at once?

Sometimes the world that we live in makes absolutely no sense. The thunder outside booms and roars, but why? We can prove it scientifically, but why it exists on this Earth cannot be answered. We know so little about what reality is, because we barely know what it is. What is reality? The fact that we know only what exists on our planet, but we barely even know everything on it! I cannot keep over complicating life, my happiness depends on it. Some things can be searched for a persons whole life, and still be unable to figure out.