The nature of religious faith is quite mysterious. As part of their religious faiths, people believe in a variety of deities. There are people who have religious faith in the unseen supreme transcendental power and then there are others who believe in some humans as Gods, animals (e.g. monkeys), fire, idols made of stone, and the list goes on.
A lot is associated with having a religious “faith”. Part of it has to do with beliefs passed on through generations. People’s identities therefore get tied to it. Many times, these beliefs and associated feelings are not completely demonstrable by reason or any rational arguments. There is nothing right or wrong with this but that’s just how the nature of religious faith has come to be.
Everyone thinks they are right in their faith and beliefs. Being with people and groups with similar faiths further strengthens people’s faiths and they see it as “right” even though logical reasoning and argument sometimes can’t explain it all. That’s human psychology.
ISLAM’S ARGUMENTS BASED ON INTELLECTUAL REASONING
Muslims believe however, that the Islamic religion is different in this context. One may argue that similar to other faiths there are aspects of it which are not completely demonstrable by reason but on the other hand, the Quranic text, which is Allah’s words addressing the humanity at large, uses intellectual reason, critical thinking, and the process of reflection as a means to not only reinforce the faith of the believers but also to call non-believers to ponder about the authenticity of Islam as the way of life for the humanity at large. Although no religious beliefs can be fully based on logic and reasoning, Islam and Quran provide more than enough examples and an opportunity to examine the truth and the soundness of its message through the lens of empirical evidence and knowledge.
No one (Muslim or otherwise) would argue that critical thinking and reflection can be a major catalyst for changing of ones life. Critical thinking has been used by many to improve their lives simply because a critical thinker asks probing questions about a situation, collects as much information as possible, reflects on the ideas collected and generated in context of the information available, keeps an open and unbiased mind and carefully scrutinizes assumptions and seeks alternatives.