明日は憎しみを学んだ。今日は we learn that too much 憎しみ will turn you into this:
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怨霊 (おんりょう) - Revengeful Ghost
And you don't want to be a 怨霊 because then you will never be at peace even after a 厄払い (やくはらい) - Exorcism, you might enter a world that you don't want to 入る (はいる) - Enter.
Yet it does make for good お化け話 (おばけばなし) or 怪談 (かいだん) - Ghost Story.
👻"ブー！！！"