In the Allegory of the Cave, Plato describes a cave where prisoners have been tied since birth and made to face a wall. All their lives they see shadows cast on the wall by objects and people passing behind them. Their entire reality is those shadows, and they describe them and discuss them amongst each other, guessing what each shadow represents.
One day, one of the prisoners escapes his binds, is able to see the reality of what is casting the shadows, and realizes where they guessed right, and where they were mistaken.
Plato's point: we are all these people, thinking that what we see is real, when in fact we are looking at shadows. Sometimes resistance to change is actually fear, posturing is in reality insecurity, and denial a cry for help.
The truth is not so plain to see, but it's out there if you're willing to escape the binds of your mind.