Dentifying the circumstances of the situation and the circumstances of discourse is one of the characteristics of pragmatic linguistics, which studies language in use and monitors the linguistic process, paying attention to the third of discourse, which is the speaker with his intention, the addressee with his understanding, and the linguistic performer with his benefit. The presupposition is one of the concepts of pragmatics that appeared in the conclusions of analytical philosophers, namely Russell, Frege, and finally Strawson, following the meaning of returning it to external reality. This opened the door to context and situational circumstances in interpreting natural speech. It also expanded the interest in using flexible ordinary language rather than rigid logical language. Nah-Balagha messages are among the religious texts that carry a communicative message of communication by tracing the phenomena of understanding and understanding by the speaker and the addressee, based on shared knowledge and assumptions based on that knowledge and information not mentioned in the text. On this basis, the article treated the discourse of messages in the Balā’ah approach as mostly deliberative and exchange discourse, based on the prior assumption that it is part of pragmatic linguistics, following the descriptive and analytical approach in light of statistics. Finally, I concluded that the letters contained the five presuppositions of existential, realistic, lexical, structural, and counterfactual, all of which indicate a series of assumptions that work to take into account the cognitive and spatial principles.