The relevance of common ground is of utmost significance in the production and interpretation of literary plays, especially, those of African refracted universes. However, much as the contribution is to linguistic scholarship, little has been done in this direction, especially on the plays of Ahmed Yerima. Applying the relevance and common ground principles, therefore, this study sets out to investigate how the principles enhance the production and reader‟s interpretation of Ahmed Yerima‟s perspectives in Ajagunmale, so selected because it is rich in data. We found out that with the notion of relevance and common ground, Yerima effectively selects such lexical items of idioms, personal pronouns, proverbs and wise-sayings in the constructions of utterances of his characters in Ajagunmale, thereby aiding our easy understanding of Ahmed Yerima‟s perspectives in the play. A study of the relevance of common ground therefore significantly enhances our interpretation of the use of language and authorial perspective in the play, and could also be useful if applied to other Ahmed Yerima‟s plays as well as other African refracted universes.