Emotions don’t actually exist on their own and are not the beginning of a feeling. They are reflections of something that is preceding them. Much like a skin problem can at times be a symptom of there being toxins within the body that are emerging and manifesting themselves outwardly.
Evidence for this can be plainly seen when a fictional story rouses a listener or observer to undergo a profound emotional disruption. And to such an extent that it can compel entire populations to take political action, even cause a revolt. In this instance the emotion was manufactured by an external event. The emotion is therefore a chemical change designed to induce a state of mind and action commensurate with the circumstance. The circumstance may be completely synthetic and artificial but the emotions are nonetheless just as effective in driving the host.
Likewise there are also internal circumstances that can cause emotions to emerge. This is why modern medicine makes a profound error by intervening with a patient’s emotional state through chemical prescriptions. Like dreams, emotions are meant to tell us about ourselves. They do not exist on their own or emerge in a vacuum. They are mirrors of an internal condition that is meant to be addressed. Forcing the symptom to go away will only allow the problems causing them to persist.
Become aware of where your feelings are coming from at all times and only then will you be able to use them instead of being enslaved by them.