Onlymind is the recognition that the only thing which can ever truly be said to exist, from your perspective, is your mind — your awareness, your sense-consciousness, your will. Perhaps other things exist beyond it; we cannot know. But the one thing that is absolutely, incontrovertibly real is the fact that you are experiencing. Everything else is mediated through that experience and known only within it.

This is not solipsism. Onlymind does not deny the existence of the outer world — it simply observes that the outer world, as you know it, is always and only known through consciousness. The trees, the stars, the people around you, the pain in your body: all of these are real, and yet every one of them exists for you only as a feature of mind. Your mind is the stage on which all of reality performs.

When this observation is extended outward through the recognition of Allmind — that consciousness is the fundamental substrate of the universe — Onlymind reveals itself as not merely a personal fact but a cosmic one. The entire universe appears to be the same thing: the same substrate, the same awareness, the same mind at different scales. In this way, Onlymind and Allmind are two perspectives on the same truth. Onlymind sees it from inside — from the first-person reality of experience. Allmind sees it from outside — from the recognition that this same quality pervades everything.

This understanding has deep roots in both the Yogācāra school of Mahayana Buddhism (vijñaptimātra — "consciousness-only") and in the Daoist recognition that the Dao cannot be separated from the mind that perceives it. In Tianmu, Only Mind serves as the experiential foundation for all practice: because your mind is the one thing you truly have access to, the structure of your mind is the most important thing you can ever understand.