when somebody gets us furious, we know that the only reason we got angry was because we had a secret hidden model of how we think it ought to be that we were holding on to. We realize that the person who got us angry is a teaching, and in our minds we thank him.
...whenever someone breaks one of our covert contracts...or how we expect the world to be. Holding tightly is our own issue, the looser we hold expectations the more present we can become in thanking the teachings that come through frustration or suffering.

