When we wake up in the morning we want to find the floor under our feet, the sun above our heads, and coffee in our cups. And just as we expect these kinds of physical consistency, we also expect psychological consistency. If we had marriages, families, and jobs yesterday, we expect to find them today in pretty much the same condition. And the glue that holds all these mental relationships together is consistency. Because it is consistent.
Consistency becomes like a form of human gravity.
It holds everything down and together. It helps us to understand the world and our place in it. Inconsistencies create a state of dissonance . As much as we need consistency, however, there are many occasions where things occur in surprising and unexpected ways. There is an inconsistency between what we expected and what we got.