Fanaticism is an excessive, irrational, and obsessive enthusiasm for or devotion to a cause, belief, or principle that often leads to extreme behavior and intolerance of differing views.

Fanaticism is excessive or irrational devotion, enthusiasm, or zeal for a cause, belief, or person, often accompanied by intolerance of opposing views. It can involve uncritical zeal, an obsessive enthusiasm, and a willingness to harm or stop those who disagree. The term's root, "fanaticus," relates to being "mad," in the sense of being angry or insane.

Religious fanaticism or religious extremism is a pejorative designation used to indicate uncritical zeal or obsessive enthusiasm that is related to one's own, or one's group's, devotion to a religion.

Ignorance is a dangerous force that can destroy the social harmony of a nation. When people lack knowledge and understanding of different cultures, religions, and lifestyles, they tend to discriminate against those who are different from them. This discrimination can lead to division and conflict within the society.

Tolerance is willingness to accept behavior and beliefs that are different from your own, although you might not agree with or approve of them.