How do we chain ourselves without our awareness?

After 20 years in captivity, Ina the bear is still mentally trapped in her cage. Visibly scarred by the trauma of living most of her life locked in a small cage in a Romanian zoo, she is still seen walking in circles.

Many of us keep ourselves trapped in a cage for so long. Even after we leave that cage we create the cage in our imagination till we die. Think about it!