Fritz Perls: emotion is too important to waste on a catharsis.

I agree very much when you say that ‘stress’ may mean very different things.

And I do think that it matters how we achieve calm. Here’s one way: care about nothing and no one, including yourself. No anger. I don’t recommend it though.

It seems to me that anger is still a taboo. Even otherwise rational therapists speak of it as negative (often not long after pointing out that ‘emotions just are what they are’). I certainly agree that inappropriate expression of anger leads to much unnecessary suffering. But when appropriate it helps us see through unhelpful ways of doing things and gives us the energy to initiate different behaviour. Anger is good.