I'm not saying don't take care of your body, but there's a lot more to it than that. You become willing let it die into Something much, much bigger than anything you've ever imagined yourself to be. You become willing, absolutely willing, to give yourself to Love. If you want to be happy, if you want to know a purity and an integrity, a freedom, a bliss and a peace the likes of which you've never known before, then don't hold anything back. It's Love's life now.
Love makes all of the decisions.
What most people call their lives is an endless pursuit of things they think will make them happy. Because their desires are limited, they get limited results. Go to the Source of Happiness. Happiness is Love. Awareness is Love.