This article aims to illustrate the contributions of Edith Stein to Psychology from an empirical research that sought to understand the formative process of the residents of a peripheral region of Salvador. To do so, it presents the results of an analysis, based on the work "Contributions to the philosophical foundation of Psychology and the Sciences of the Spirit": which illustrates the individual course of three participants of the research. The analysis makes it possible to identify five common experiences (psychophysical lived experiences of high intensity, lived experience of the personal limit, lived experience of listening to oneself, lived experience of inner struggle, and lived experience of a free decision) that mark the process of transformation of subjects, guided by a personal project. It thus exemplifies the contribution of Edith Stein's phenomenology to psychology in order not to reduce the person to the challenges of the context in which it live or to the psychophysical conditioning to which it is subjected, but to see it in its entirety by discriminating the different natures of experiences and their unique way of living, with the power it contains.