%0 Journal Article %T Ontological Jurisdiction and Professional Drift: A Sociological Analysis of De-Differentiation in Spiritual Care %A Tim Mussche %J Open Access Library Journal %V 13 %N 7 %P 1-15 %@ 2333-9721 %D 2026 %I Open Access Library %R 10.4236/oalib.1115662 %X Spiritual care occupations¡ªspiritual direction and professional chaplaincy chief among them¡ªoccupy a professional jurisdiction whose cognitive foundation is not a body of techniques but an ontological commitment: the claim that the phenomena they address (vocation, discernment, encounter, the experience of being addressed by something exceeding the self) are real in a manner not exhaustively reducible to intrapsychic process. Drawing on Abbott¡¯s theory of professional jurisdiction and DiMaggio and Powell¡¯s account of institutional isomorphism, this article argues that these occupations are undergoing a process of professional de-differentiation, by which a once-distinct jurisdiction loses its boundary and is progressively absorbed into the adjacent jurisdiction of psychotherapy and counseling. The mechanism is not external displacement but voluntary mimicry: practitioners adopt the lexicon, credentialing logic, and outcome-measurement regime of the therapeutic professions because these constitute the legitimated currency of the contemporary helping-profession field, and in doing so concede the very cognitive ground that constituted their jurisdiction. Locating this drift within the broader Weberian process of disenchantment and the rise of a therapeutic culture, the article identifies three isomorphic mechanisms operating across four domains of practice, and proposes that re-differentiation depends on the explicit re-articulation of what is here termed the profession¡¯s ontological jurisdiction. The analysis connects this re-articulation to the constructs of liminal competence and the recognition paradigm, offering a sociologically grounded account of how a contemplative profession might retain its distinctiveness. %K Sociology of Professions %K Jurisdiction %K Institutional Isomorphism %K De-Differentiation %K Spiritual Care %K Chaplaincy %K Therapeutic Culture %K Disenchantment %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=152619