Emotions are merely a tool—you can perform them, but you cannot truly possess them. Yet we are human, not immortals, so it's impossible to be completely emotionless. The version of you that has emotions is a fragile one; you need to quickly adjust and recover your strength, or indulge in reverse catharsis to find a darker strength. The only thing you must not do is waver. You must possess your own power, and whether that power is light or dark, it must be formidable.