It's a throwback from fight of flight. We get the adrenaline shot to initiate change.
I agree that anger can be from the "fight" response. I don't think the fight response is to initiate change. It's purely an autonomic, animal response to help us survive in the moment. It's literally to fight, wound and - if necessary - kill rather than be killed.
I don't think all anger is this type of anger. If I'm angry because a beautiful heritage building has been knocked down to build a car park, that isn't autonomic fight energy. If I get angry thinking about what someone did 10 years ago, that can be a justified and appropriate emotion but it isn't survival instinct in the face of immediate threat to life.
What people are saying here about doing things with their anger reinforces for me that this isn't what I mean here by anger. Maybe it's not just intensity. I'm wondering if people are talking about different types:
- Anger from fight energy. This could also be rage triggered inappropriately (ie the threat isn't actually there but we respond as if it is), or when fight energy that has been frozen in the body from the time of trauma is suddenly released later. (What happened to me when I was touched in the street and tried to kill the man.)
- Anger as an emotional reaction to people and circumstances. We are reacting emotionally to wrongness, cruelty, injustice, hurt etc but we are not reacting from the autonomic nervous system in order to survive a threat to our lives or physical integrity.
Both give you adrenaline, but they're different and the amount is different. The amount of adrenaline the body gets flooded with to save our lives isn't the same as the amount in other cases.
The anger that people are talking about channelling and using... I think that's emotional (mammalian brain) and not from fight energy (reptilian brain). It's like the difference between the sort of anxiety anyone might have over whether they'll pass an examination, and anxiety in a traumatised person who feels unsafe, up to and including thinking they're going to die. The first type of anxiety can be managed, and channelled to make you work hard and revise. The second one is not so beneficial or easy to deal with.
Fight energy doesn't lead you to improve things. It primes you only for violence and aggression, to hurt or kill. Animals don't fight their way from a predator then immediately start building a better den or whatever with that energy, so the danger won't happen again (although at other times they might improve their den). Afterwards, all they can do with the anger is shake, be active, mock fight or act aggressively. Fight energy is the anger I'm talking about, and this is what I find unbearable.