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eckhart tolle teaches about the pain body. angry/hatred/jealous get triggered inside us, and if we cannot remain conscious, we literally become the pain body, it acts thru us.

i totally believe people are insane when they are angry. rationality disappears, and their mind searches for 'who is to blame.'

i've watched this process unfold, so it isn't simply hypothesis for me. i do my best to stay conscious and not act when i'm angry until i've regain my conscious stillness within.

I would always take a step back, regain my rational mind then only proceed to whatever solution there is. Gotta stay calm if not like you said, insane! and it may even lead to unwanted actions which will regret later.