This phenomenological qualitative study explored the experiences of adolescent girls with emotional disorders from post-hospitalization boarding schools who embroidered in an art therapy open studio group. A Youth Participatory Action Research approach and the bioecological model were used to shed light on the therapeutic process of embroidery. Through a thematic analysis of the focus groups and interviews with 13 participants, we identified five themes specifically related to embroidery: (a) control versus release/freedom; (b) calmness that comes from the repetitive action and focus; (c) the experience of being exceptional versus conventional; (d) the “stitch through time” experience, which involves a dialogue with the past, present, and future through embroidery; and (e) the overt-latent layers of consciousness. The findings suggest that embroidery has therapeutic benefits for this population and supports psychological development. This study reveals that embroidery, whose threads are intricately embedded in society and culture, and may provide a unique and meaningful activity for young people in post-hospitalization boarding schools and enables a social and cultural exploration of self and community. Limitations of this study and recommendations for further research are also discussed.