There was a time when I was pushing my emotions to the limit (looking back I would say it was a flowering of the "false self" that Kohut talks about) and had to absolutely manage my anger (my project would have certainly failed had it ever come out to the wrong people) and found I could do so by "sadness flooding" which could mean going to the war memorial and reading the names, thinking about my own losses, etc.
The first mention I could find of this technique turned up in a pubmed search which revealed an article in a Chinese psychology journal that revealed that the technique was well known in China 1000+ years ago.