 How then does Zen articulate the experiential meaning of “not two”? Throughout its long history, which spans from the sixth century in China to the twenty-first century in Japan, Zen has produced numerous ways of linguistically capturing a response to this question, depending on what “two” things are thematized in the Zen dialogue (Zen mondō). As a textual study, these dialogues are a primary way for the non-practitioner to learn what “two” things are by studying a discourse that unfolds between a Zen master and his disciple. Moreover, this situation is complicated by the fact that a Zen master’s response is usually tailored to an individual disciple’s caliber. This is in keeping with a general method of teaching in Buddhism, i.e., speaking to the caliber of a listener (taiki seppō). This complication is further compounded by the differences in the personality of Zen masters. Hence, Zen’s responses to the above question are as varied and numerous as there are Zen masters. In spite of this situation, it is reasonably possible to provide a glimpse into the experiential meaning of “not two” by looking into a phrase that often appears in Zen dialogues. This phrase is “no-thought and no-image” (munen musō), whose experience points to practically going beyond “not one” and “not two.” 