Human emotions separate us from all other species on the planet and for that matter, from each other. The broad spectrum of emotional scale ranging from positive to negative makes us unique and special. It is this trait that tells our human stories.
People embrace the positive emotions more readily than the negatives. But it is the negative emotions in some respect more telling. Negative emotions such as fear, jealousy, regret, sadness are whispered taboos but part of our psyche (viewer discretion warning). No sense denying it.
Better to be familiar with the negative sides of our emotions. Acknowledging their existence but not condoning them. Confronting them head on, so our emtotions will not be easily hijacked (or more precisely our mind be hijacked).