Why?

Everyone probably wants to know this, but what is the meaning of life? This annoys me, we all work hard whether it's at work or school to achieve goals. But what for? So we can have a good life. But what is a good life? On my mum's exercise dvd it says that you only live once. But they don't know that. What if karma really is true. Why are we all here on this spheric planet when we could be floating in space. Why do we need oxygen to breathe? Why are some people so up themselves that they think they're the best and hate anyone different? Why is this world so predjustice?