What is life?

We ask ourselves what life is all about. It's easy to get a simple answer. '' Life is life.''
But in fact it is not so simple life. Because life is hard, so it is necessary to do something for life.

Every living thing breathes, moves and eats.
No living creature can survive without doing them.

Life is in need of nature, so nature and life are an equation. Without nature, life can not exist.
so we have to be happy without breaking this equation.