When I stew, it is usually about what a character in a fictional work did and why. Sometimes, I repeat descriptions about the action in my head so much, I forget what the description words mean. When I am done, I keep my thoughts to myself, because I feel that no one else would care about what I think. I will then forget about my ponderings, and neither record them nor feel the need to search for a moral from my thoughts. I am terrible at writing, and since I almost never stew about anything PRACTICAL, don't put off stewing for a time when I'm not doing something important, and usually spend too much time stewing, I can only see it as a problem. I want to know what other people do when they feel the need to stew under circumstances when they know for certain that the stewing can only bring short-term personal ephemeral gain which would not make up for the loss of not dealing with a more important task.