It's energy you can harness and channel into something useful. It's a fire you can tame. You can prepare "mental rockets" ahead of time, and when the anger arises, you use it to light one of your "mental rockets."
Hate is like a smoldering coal than you can carry around for a while. But you better use it soon, or it will start its own fire and burn you. Best not to walk around with smoldering coals in your pocket :)
“Although it was the middle of winter, I finally realized that, within me, summer was inextinguishable.” — Albert Camus
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