This study investigated the effects of the Psychological Displacement Paradigm in Diary-Writing (PDPD) program on the self of counselor interns. This research lasted for 1 year. In total, 6 counselor interns participated in this study. Participants used the PDPD form weekly to record their counseling experiences. Participants were interviewed twice. Interview transcripts were analyzed, and data analysis included open coding, axial coding, and selective coding according to the grounded theory of qualitative research. In total, 6 characteristics of self were affected by the PDPD program: 1) emotional awareness, processing, and change, 2) self-awareness, 3) self-empowerment, 4) self-acceptance, 5) self-empathy and support, and 6) settling and healing. The mechanisms by which the PDPD program affected self-included self-dialogue, self-support, and self-confirmation using the second-person singular (you) pronoun; expanding one’s vision, encouraging new perspectives, nurturing oneself using the third-person singular (she/he) pronoun; and changing pronouns.