Emotions

An emotion is a reaction to an event which is perceived to affect an attachment.

If I'm attached to the idea that a particular object remains on my desk, it will bother me if that object falls off. If I'm not attached to the idea that it stays, then it won't bother me if it falls off (unless it breaks and I'm attached to the idea that it should stay intact).

If I'm attached to the idea that a particular team will win a sporting event, I will have an emotional reaction at the conclusion of that event. That reaction will either be pleasurable or painful depending on the results of the game. If I'm not attached to the idea that a particular team will win, I will have no reaction to the outcome.