What I don't understand...

I DON'T UNDERSTAND...

I don't understand:
why people wear flipflops in January
why we all just can't get along with each other
why we have to hurt each other so much

most of all, I don't understand:
why we get caught up in dramas
why we need to stereotype each other
why some people have everything and others have nothing
why we just can't get it together
why we are at war about the price of gas
why it's so easy to argue over stupid stuff

What I understand most is
why my heart lightens when I hear the robins chirping
why trees always grow towards heaven
why even in the light, there is a shadow
why even on the darkest nights, there are still starts
why even when it rains, there may be rainbows