Comparing the cognitive style of Jami and Ghazali's letters in the political context of critical discourse analysis

The main topic of this research is a combination between stylistic of letters of Jami and Ghazzali with the approach of critical discourse analysis. The letters of mystics and great scientists are major historical sources which, in addition to enclosing a lot of political, social and cultural information of the past, they show the relationships between the writers and authorities and different social classes. In this research we are trying to investigate the stylistic features of Jami and Ghazzali in three levels of description, annotation and explanation based on 3_dimentional model of Norman Fairclough in order to answer this questions that each one used which discourse and language strategy to communicate with others in political subjects? Which common and different points are exist in stylistic and language features of their letters? What role does discourse play in letters? The metod of this study is analytical-descriptive and our results showed that the ruling discourse on the letters of Jami is gnostic which, centered on divine love and ruling discourse on the letters of Ghazzali are ascetic which, centered on futurism. Each of them manipulate a discriminate discourse in letters to save authority against government ; but in fact the relationship of Jami's authority is via alignment with power of governors, on the other hand Ghazzalis's authority is via standing against the government apparatus and by this method could control the authority and invited them to adminstrative of justice and supporting people.