One of the hallmarks of the Japanese psychiatrist and philosopher Kimura Bin’s (b. 1931) philosophical approach is the conversion of ordinary words into philosophical concepts. Here we focus on the way he appropriates the Japanese words onozukara and mizukara, ordinary terms associated, respectively, with things that occur naturally, spontaneously, or by themselves, and those that come from oneself. This re-reading of these terms as philosophical concepts furnishes an interpretive frame that brings together and makes sense of large and important concepts in philosophy and psychology such as self and nature, perception and sensation, collective subjectivity and individual subject, schizophrenia and self-realization. His appropriation of these two Japanese terms also uncovers a general and impersonal form of subjectivity that underlies our experience of ourselves as individuated subjects and stands at the center of his philosophical and psychological investigations into these phenomena.