Recent controversies in Japanese Buddhist scholarship have focused upon the Mah y na notion of a “Buddha nature” within all sentient beings and whether or not the concept is compatible with traditional Buddhist teachings such as an tman. This controversy is not only relevant to Far Eastern Buddhism, for which the notion of a Buddha-nature is a central doctrinal theme, but also for the roots of this tradition in those Indian Mah y na s tras which utilised the notion of (...) tath gatagarbha. One of the earliest Buddhist texts to discuss this notion is the Queen r m l S tra, which appears to display a transitional and revisionist attitude towards traditional Mah y na doctrines such as emptiness and no-abiding-self. These and related issues are examined as they occur in the r m l S tra and as they might relate to the issue of the place of Buddha-nature thought within the Buddhist tradition. Finally some concluding remarks are made about the quest for “true” Buddhism. (shrink)