Can Two Traditions Form One Knower? Multiple Religious Engagement and the Epistemology of Formation

Diller’s religious partialism explores how several traditions can contribute to knowledge of ultimate reality. Stepanenko distinguishes metaconceptual and perspectival variants and argues that the latter offers more reason for local affiliation. This article evaluates that claim through social epistemology, selected Sufi texts, and Buddhist–Christian comparative work. Two grounds emerge. Distinctive contributions give reason to sustain practices where their continued availability depends on them. Where the target includes using several conceptual schemes, each learner must acquire that competence, although others can teach it. On an account permitting testimonial knowledge, an established comparative conclusion may instead be learned without repeating the inquiry behind it. Diller’s recognition that local insights are mixed with error makes selection, interpretation, and assessment central to comparative learning. Sufi accounts distinguish educational requirements from access to teaching relationships. These findings give qualified support to Stepanenko’s affiliation claim by identifying conditions that strengthen reasons for local involvement. Affiliation becomes necessary only where no adequate, feasible nonaffiliative route supplies the required competence or access. It can therefore be epistemically valuable without being necessary, and necessary without being sufficient for knowledge.