Explored the impact of the Enlightenment on the development of Western individuals and subject cultures, particularly analyzing the relationship between self attention, self technology, and self writing through the diary and autobiographical writing practices of Swiss German speaking writer Ulrich Brak. Braque's self writing is seen as a self technique, through which he constructs and updates relationships with himself, shaping himself into a moral subject in action. This form of subjectivity is a non essential and malleable self relationship, linked to Descartes' philosophy of subjectivity and Foucault's hermeneutics of subjectivity. Foucault believed that self attention is a fundamental principle of life and a continuous practice that involves understanding oneself, shaping oneself, transcending oneself, and controlling desires that may devour people. Self technique is an individual's ability to change and improve their life skills through a series of exercises, and writing is one of the important self techniques.