Personal bias suppression
Suppression of personal bias can be described as the suppression of the cultural and individual biases which human beings knowingly or unknowingly experience, interpret and filter their perception of the world through during everyday life. This bias affects our ability to objectively evaluate the world around us in ways that are much more powerful than most people are willing to admit.
The idea that the opinions and decisions of people are based upon a consistent and unconscious tendency to notice and assign significance to observations that confirm existing pre-existing beliefs while filtering out and rationalizing observations that do not confirm pre-existing beliefs is a well established concept within the scientific literature. This is known is known as Confirmation bias and exists within varying degrees across all people but is significantly stronger for those with emotionally charged issues and for deeply entrenched beliefs.
It seems that a human being's perspective of the world is built up out of a complex set of filters which are based upon pre-existing beliefs, past experiences, fears, prejudices, stereotypes, and cultural symbols. The experience of this component, however, seems to entirely suppress this bias and shows people that culture is merely a subjective and often delusional perspective-- not an objective reality. This experience can create profound changes in perspective that can last a lifetime by making people become who they really are and not what they were raised to be.