In "State of Fear," Michael Crichton argues that belief systems are essential to human existence, even for those who do not subscribe to traditional religious views. He suggests that everyone needs a framework that provides meaning and helps them navigate their lives, which can be considered a form of religion, regardless of its nature.

This idea emphasizes the importance of having convictions or principles that guide one's understanding of the world. Crichton highlights that these beliefs, whether explicitly religious or not, play a crucial role in shaping one's worldview and giving life purpose.