This article is poorly presented. However, it deals with a technique called "emotional rehearsal" which has proven to be quite helpful to people in many situations. The goal is not to feel ok when you get kicked in the head- who could? The goal is to get better at predicting your regret states given certain outcomes to your decisions. Then this knowledge may help your decision making.
Say you are relatively young, and you have a nice house in San Diego not far from the beach. You and your wife and kids love the life. But you suspect that the housing market is toppy, and that you could take out a big hunk of tax free money by selling, renting, and buying back a similar house later.
Emotional rehearsal would have you try to understand how you, your wife, and your kids will feel (and feel about you) if you do that, and the housing market keeps on chugging. You feel locked out; you have lost your Prop 13 advantage, mortgage rates may have increeased, but you do have your cash.
So how do you feel?
Ha