It's good to be alive in the world, this kind of happiness can not be reach by play with yourself or a loner, its about the creation of the god, the living things and good for you.
Mother love their child. The day you come to earth is life changing lives with your mother. Mother concerned you and treat their child even better than themself.
Father love their child. they work hard to support whole family. because all of this, we can enjoy the fruits of others without having toiled.