Western philosophy has largely taken the subject-object distinction as foundational. There is a knowing subject (the mind, the self, the I) and a known object (the world, things, not-I). Epistemology studies how subjects come to know objects; metaphysics studies what kinds of objects exist. Even phenomenology, Husserl's analysis of consciousness, begins with the intentional structure of a consciousness directed toward its objects.
Nishida Kitarō (1870–1945), the founder of the Kyoto School and the most original Japanese philosopher of the modern era, built his entire philosophy on the conviction that this starting point is derivative. Beneath the subject-object duality there is a more fundamental reality: pure experience (junsui keiken), experience before it has been split into a subject who experiences and an object that is experienced.
Nishida's first major work, An Inquiry into the Good (Zen no Kenkyū, 1911), opens with this claim. Pure experience is not a theory; it is a description of something everyone can verify by attending carefully to their own experience. When you are deeply absorbed in an activity, playing music, solving a difficult problem, absorbed in conversation, there is a moment before self-reflection in which there is just the activity, just the experience, with no separation between the one doing it and what is being done. Nishida identified this immediate, undivided experience as the true ground of reality.
He was explicitly inspired by two sources: the American philosopher and psychologist William James (whose concept of "pure experience" and "stream of consciousness" Nishida encountered in translation) and the Zen Buddhist tradition in which he was personally grounded (his lifelong friendship with D.T. Suzuki, the great popularizer of Zen in the West, shaped his thinking from the beginning). Nishida saw the Zen experience of no-mind (mushin) as the philosophical touchstone for pure experience, the state in which conceptual overlays fall away and reality presents itself directly.
To experience means to know facts just as they are, to know in accordance with facts by completely relinquishing one's own fabrications... Pure experience is the state in which there is not yet a subject nor an object.
— Nishida Kitarō, An Inquiry into the Good (1911), trans. Masao Abe and Christopher Ives
Crucially, Nishida argues that pure experience is not the experience of a prior subject who then splits off objects, it is the primordial unity from which both subject and object are subsequently differentiated. The "I" and the "world" are not givens that come together in experience; they are constructions that emerge from a more fundamental experiential unity. Philosophy that begins with the I-world duality has already lost its grip on the most fundamental level of reality.
This gives Nishida's epistemology a distinctive character. Knowledge, for him, is not the accurate representation of an external world by an inner subject. It is the self-unfolding of pure experience, which is simultaneously self and world before these are separated. When you understand something deeply, when thinking and thing become one, you are returning to the mode of pure experience from which reflection temporarily departed.
Quick reflection
Nishida says there are moments — in deep absorption, creative work, or contemplation — when the subject-object distinction dissolves into pure experience. Can you recall such a moment? What does it suggest about which is more fundamental: the split or the unity?