Mingle a little folly with your wisdom; a little nonsense now and then is pleasant. [Lat., Misce stultitiam consiliis brevem: Dulce est desipere in loco.
To sing the ballad with a knowingness about what you are talking about. If it's somebody else's lyric, and the message is a little unusual for you, it requires that you learn that new message.
Whether one showed you and execution or a little finger, you would extract an equally edifying thought from both of them, and would still be content. That's the way to get on in life.