Within the Kegon tradition, what is commonly called “nature” is not regarded as a realm apart from awakening, but as a direct manifestation of ultimate reality itself. All natural phenomena—mountains and rivers, trees and stones, even the smallest grain of sand—are understood to participate in the Dharmadhātu, the total field of reality. This vision rests on the doctrine of mutual interpenetration, in which each phenomenon contains and reflects all others, so that nothing stands alone or exists in isolation. Nature, in this light, is not a backdrop for spiritual life but an active expression of it, revealing the same truth that scriptures and formal teachings articulate.

Because of this, Kegon thought dissolves any sharp boundary between human beings and the natural world. Both are woven into a single network of interdependence, where each element arises with and through all others. The language of Buddha-nature is extended to encompass natural forms, so that mountains, rivers, trees, and stones are seen as participating in the universal Buddha-body. Nature thus appears as inherently sacred, not by symbolic association alone, but by virtue of being a direct expression of the enlightened cosmos.

This understanding has profound contemplative and aesthetic implications. To attend carefully to a flower, a stream, or a stone is, from a Kegon perspective, to encounter the totality of reality shining through that particular form. A single drop of water or a mote of dust is not merely itself; it is a gateway through which the entire universe can be intuited. Such a view encourages a reverent, receptive stance toward the natural world, seeing in every landscape and every season an opportunity to discern the interpenetration of all existence.

In Japanese religious culture shaped by Kegon, this vision of nature subtly informs artistic and ritual practices. Gardens, natural settings, and carefully arranged plants or stones become spaces for contemplating the non-duality of self and world, form and emptiness. Nature is approached not as an object to be mastered, but as a teacher that silently discloses the structure of reality. To live in accord with this perspective is to recognize that every element of the natural world both is itself and, at the same time, mirrors the boundless web of awakening.