John Piper

God has ordained that Satan have a long leash with God holding on to the leash because he knows that when we walk in and out of those temptations, struggling with both the physical effects that they bring and the moral effects that they bring, more of God's glory will shine.

The thing about dancing - what it taught me all those years - is it gives you an amazing sense of discipline in forcing yourself to do things that you know are good for you but you don't really want to do.