When we feel threatened, the bodily sensations are certainly intense but also exciting. In other words, our nervous system and all other bodily systems are activated, and energy courses through us. Just think about how energizing it is when a fight or an argument breaks out. There is a moment of satori. Our attention is heightened, our senses open up, and we focus with remarkable precision on the here and now. Our eyes, ears, and mind are alert and fully present to what is happening. We may not think of it this way, but conflict wakes us up, even as we prepare to run away.
From Everything Is Workable: A Zen Approach to Conflict Resolution by Diane Musho Hamilton, page 37