Neuroscience is increasingly part of the national dialogue regarding mental health. The field of interpersonal neurobiology may offer a framework for helping mental health professionals identify and apply the most relevant neuroscience principles to counseling. This study explored mental health professionals' experiences learning IPNB. I conducted semistructured interviews with participants (n = 6), all of whom were licensed mental health professionals and had completed a year-long study in the application of IPNB through Nurturing the Heart with the Brain in Mind. I analyzed the data, along with a research partner, according to interpretative phenomenological analysis (IPA) protocol. Four super-ordinate themes emerged from the analysis: (1) learning process as dynamic and engaging, (2) deepening knowledge and understanding of self and others, (3) personal and professional growth, and (4) impact on therapeutic practice. A number of sub-ordinate themes also emerged through the analysis , including experiential learning; learning through group process; influence of the past on the present; increased understanding of the change process; increased compassion, empathy, and acceptance for self and for others; increased confidence; using IPNB to educate clients; using IPNB to conceptualize clients; and using IPNB to select interventions. Finally, I identified three higher-order constructs that appeared embedded within and across themes: learning as ongoing, person of the participant, and person of the instructor.The findings in this study suggest that participants' learning of IPNB had a significant impact on their personal and professional development, specifically in areas related to characteristics of effective counselors. The findings also suggest that these meaningful changes