In the semantic functionalism approach, language constructs are examined according to three specific views: Ideational, interpersonal, and textual. These three, calledmetafunctions, form the basis of Systemic Functional Linguistics (SFL). Halliday, the founder of systemic functional linguistics, believes that the patterns of experience and mental concepts of the creators of works are reflected in the verbal processesof ideationalmetafunction. Therefore, by examining the types of processes, and the factors and circumstances that create them, one can become aware of the ideas and experiences of the creators of literary works and analyze the factors influencing their formation.Considering this aim and adopting a descriptive-analytical approach, Ebtehaj lyrics, based on their constructive discourse, were divided into three historical periods and after determining the frequency and describing the function of verbal processes as astylistic feature their constituent factors were analyzed. The findings show the extensive application of the material process and then the relational process to other systemic functional linguistics processes.The reason for the high frequency and type of application of the mentioned processes, as well as the small representation of other main and secondary processes ofideationalmetafunction in Ebtehaj sonnets should be considered in factors such as the effect of meaning on the formation of the language of the work, political and social changes of the poet’s time,his special mood and stylistics, the importance of the role of the audience in his thought, as well as his drawing inspiration from earlier and contemporary poets.