The ideological, religious, philosophical intolerance is caused by a rejection caused by the known immune system or some other similar operation.
We tend to think that we can understand and accept any ideas, as well as we think we like all the music, whatever.
This is not so: we can only accept those ideas that come into harmony with the ideas that we have in our mind.
Of course, as a precondition, the understanding of any concept is determined by the possession of knowledge that gives this idea for granted. We could never understand issues that are outside of our skills, knowledge, basic information.
Nor can we accept, add, admit, all this idea is against setting our world, or our philosophy of life, or our strongest and deepest beliefs.
Therefore, the ductility of the mind is not. Just as capable when we believe we have not had the opportunity to access skills that require us theories that are out of our reach.
Even if we are able to understand the news presented to us, we are not sure we can incorporate them as true. Coexistence of new ideas depends on other ideas that we have built. To put it metaphorically, every new idea must make immigration process to our mind, will end up being approved or disapproved.
This non-acceptance intolerance, denial, misunderstanding, discrimination, disqualification, active rejection or indifference deadly arise.
Our mind and the rest of the body, does not accept any graft: an immune system (or knew me protects us from microorganisms), protects us from anything that might conflict with our harmony and coherence healthy.
This could be an explanation of why we can not accept some beliefs. It is the body itself that rejects them as if it were foreign tissue.
Note: Original in Spanish (without translation by Google): La mente no admite cualquier idea.
(Este es el Artículo Nº 2.164)