Why is a cynical and critical person considered unfit for self-knowledge according to the principles outlined in the provided text?

The text in Chapter 2 explains that a cynical, critical, and logic-driven person is unfit for self-knowledge because their mindset creates a barrier to spiritual truth. Such a person, 'proud of his own wisdom,' is prone to argumentation and false logic. This state is described as being dominated by ignorance and Maya, where there is 'no purity of self-interest.' The author uses his own past self as an example, noting he was critical and 'knew nothing of the Satguru's greatness.' This pride and cynicism prevent the surrender and faith necessary for the 'unperceivable, formless, and dense Consciousness' to manifest, ultimately leaving the person to be devoured by ignorance.