Stepping on my soapbox: Treat your mind, body, and present moment as if they're sacred. As if you could live a thousand lives and they would be sacred every time. All the other stuff, it's just this once.

Cleaning a mind of random grievances and addictions is good. Letting a body be weird, dance wrong, move in funny ways, sing poorly: this is good too.

The whole "purpose" thing is a side-effect. It can't be sought directly, I think.