Sadhguru
How can I stay happy when my efforts don't succeed?
Root your actions in joy
Our actions in the world are not always successful, however well we do them. So let your actions be rooted in your joy. Joy should not be a result of something you do.
I will die a blissful failure, because my being blissful does not depend on the results of my actions. My actions are rooted in my blissfulness.