The Purpose of Shiva is Companionship, Friendship, Love.

It is said that the origin of shiva is shiva not wanting to be alone. And so it is. The purpose of shiva is companionship, friendship, love. It is not good to be alone. What it means is that all this is shiva and that the purpose of shiva is love, all this so to love and be loved in eternal return.
~ Wald Wassermann