What Jung says is that you should play your role, knowing that it’s not you. It’s a quite different point of view. This requires individuation, separating your ego, your image of yourself, from the social role. This doesn’t mean that you shouldn’t play the role; it simply means that no matter what you choose to do in life, whether it’s to cop out or to cop in, you are playing a role, and don’t take it too damned seriously. The persona is merely the mask you’re wearing for this game.