Hmm.. I really don't know, and I'm also the wrong person to talk to about this because I have some issues with the theory.
As for processing emotions, I've found over the years that for me it's best for me to let them be...they are what they are, and often-times the only way I can truly process them and be at peace with things is not to resist them, but to accept them, almost as 'facts', not push them away, and just ride them through completion. For example Sadness/mourning... embrace that, no matter how hard and sucky it is to deal with it/face it/be filled with those emotions. Letting them 'be', for me, means they lose their power over me and I process them more easily. Fighting them, for me, usually leads to anxiety/judgment, which means that the whole process is lengthened. I think part of it for me has been learning that the negative emotions are a part of life, and sometimes I just have to be immersed in them because they are what they are. It's ok to be depressed or whatever. I used to be much more consumed with the cyclical nature of emotions, too, in that I always knew that sometime down the road I'd once again have to face really negative experiences/feelings. At one time that knowledge caused me so much anxiety and tiredness that I could hardly stand knowing that my life was going to be a continual series of ups and downs. But once I realized that the downs are never a permanent down, the cycle element lost its power/force, and I was ok knowing that there would be future pain/challenge/emotional downs, because having gotten through previous downs back into the up, I knew that no future down would be permanent and there was always joy and loveliness in store for me in the future too. And with all of this, I was able to better ride everything out, because I have a solid belief that this too shall pass. With this too, the downs aren't as down as they once were - they just are. They'll never not suck, but they don't impact me as heavily as they once did. Or, it's different. I don't know. Of course there's also a bittersweet element, knowing that the highs can never be maintained either, and sometimes the flat stagnation can be just as bad as the negative, in some ways, but... yeah.
That was long. lol. And I'll resist editing it/cleaning it up.