This text explores Paul’s conception of criticality and discernment within the context of the Holy Spirit's influence, as described in the First Epistle to the Corinthians. The author examines how a spiritual person, through the reception of God's gift and the mind of Christ, gains the capacity for profound critical insight into reality. This ability is not inherent to human reason but stems from the Spirit, which searches even the depths of God. The text emphasizes that Divine wisdom, previously hidden as a mystery, becomes accessible to those who adopt spiritual thinking. The study points out that Christian faith does not contradict critical thinking but rather deepens it through revealed truth that transcends ordinary sensory experience. The goal is to illuminate the mechanism by which mystery transforms into revealed knowledge through the inner transformation of the believer and their participation in a divine perspective. The analysis focuses on the dynamics between faith, intellectual inquiry, and spiritual enlightenment, which enables the discernment of all things in their true essence.