It's not striving for anything really, just accepting what you can't change and not focussing on material things. Just being good to everyone you meet and taking care of the earth. That shouldn't make anyone unhappy.

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What was the best thing before sliced bread?
-George Carlin

Anger and intolerance are the enemies of correct understanding.
-Gandhi

All religions, arts and sciences are branches of the same tree.
-Albert Einstein