Within the Japanese reception of Huayan thought, the figure most clearly recognized as the central originator of the Kegon tradition is the monk Rōben (良弁). Although the broader doctrinal roots lie in the Chinese Huayan school and its great patriarchs, in Japan it is Rōben who stands out as the one who effectively gave Kegon its concrete institutional and spiritual form. Rather than appearing as a solitary genius inventing something entirely new, he can be seen as the pivotal conduit through which an already profound vision of reality took root in a new cultural landscape.

Rōben’s role is closely tied to Tōdai-ji in Nara, which became the principal center for Kegon practice and study. As the first abbot of this great temple, he did more than administer a monastic complex; he helped shape a living environment in which the Huayan vision—later called Kegon—could be contemplated, taught, and ritually embodied. In this sense, his “founding” activity was as much about creating a field of practice as it was about transmitting doctrine, allowing the intricate philosophy of interpenetration and mutual containment to be grounded in liturgy, study, and community.

Later figures, such as his disciple Jitchū, further developed what Rōben had set in motion, but their work only underscores how decisive his initial efforts were. To speak of Rōben as founder is therefore to acknowledge that Kegon in Japan did not simply arrive ready-made from abroad; it required a guiding hand to interpret, organize, and stabilize it in a new setting. Through that work, Rōben came to be regarded as the principal founder of Kegon, the one who transformed a luminous scriptural and philosophical heritage into a distinct Japanese Buddhist school.