Conceptual metaphor is one of the key topics in cognitive linguistics, which is based on understanding one conceptual domain in terms of another. Cognitive semantics is one of the sciences that paves the way for discovering and analyzing the intra-textual relations of narrations. In order to explicate the concept of “reason”, the Infallibles (a.s.) invited their addressees to reflect on the intangible through material things and the tangible. This process induces religious teachings by providing ontological and epistemological similarities between the two domains of origin and destination. The aim of the present study, which has been conducted using the descriptive-analytical method, is to analyze the conceptual metaphors of “reason” in narrations. The findings of this study revealed that the most important conceptual domains of “reason” in narrations include light and illumination, capital and wealth, needlessness, forgiveness, blessings, beauty and adornment, guidance, power and command, prosperity, healing, friendship and openness, which in combination with image schemas obtained from the two domains of origin and destination have provided a purposeful and enlightening cognitive system in a metaphorical and comprehensible context and caused credibility, concentration and better transmission of teachings.