>>7383383Emotions are a method of reaction to stimuli if we had to simplify them and their place in a person/construct/being that has covered the necessary prerequisite in the form of organs, components, experience etc.
What emotions do to power "magic" as you'd call it is rapidly shift mentality on the spot for a quick effect. Like igniting a flame. How does a flame or heat come to be? Two particles smash each other back and forth and produce it. Anger is no different. As is Fear, Harmony, Agitation, Anxiety, Happiness and so forth.
e.g pic related.
Out of the nihilistic truth it's rebutted by the use of quick emotions to justify a pointless existence via experience.