Emotions are feedback mechanisms for how we deal with "self" and "other," ultimately resulting in three outcomes: "I like it," "I don't like it," and "I'm indifferent, ignore it." When the thought "I like it" arises, I begin to take action to approach it and eventually obtain it. When the thought "I don't like it" arises, I begin to take action to distance myself from it and ultimately avoid any contact with it. Emotions arise during this process. For something you like and want to obtain, there is anticipation and longing until it's acquired, which can serve as motivation. However, when our hearts excessively anticipate, this emotion turns into the suffering of "desire but not obtaining." For things we dislike and want to avoid, we proceed with caution, being mindful of potential harm. When this caution becomes excessive, the emotion turns into the suffering of "Gain but not give up."
Extreme emotions arise because our observations of things become entangled in extreme value judgments. This understanding is crucial for managing emotions effectively.