Take anger as an example. The more you ruminate. The more likely you are to feel angry, to become angry, to express anger. Rumination is that mental process of going back to something negative, stewing on it, replaying it in your mind. I ask you to think about something that upset you, and to ruminate on it. You would probably become angry pretty quickly. ◈ 6:14 The mental process that gives rise to anxiety is worry. If I ask you to worry about something, we could probably produce the physiology of anxiety, the thinking of anxiety, the motivation of anxiety. And the mental process that gives rise to joy, that makes joy possible is appreciation. And appreciation is about noticing or reflecting on something. The Next Big Idea Daily · source