《道教義樞》〈道性義〉對佛性思想的吸收與轉折

The Absorption and Translation of the Buddha-Nature Doctrine into Dao-Nature Theory in Daojiao Yishu

《道教義樞》是初唐時期道教教義的代表作，除了匯集許多重要的道教義理之外，更反映出重玄思想的時代特徵，以及受到佛教教義學影響的痕跡，透露當時道教思想吸取佛教思想而變化的線索。道性思想的產生，不可忽略的是佛性思想的激盪作用，對於「修道根據」開展出新的詮釋面向，促使道教逐漸轉化修道的內容。本論文聚焦於《道教義樞》〈道性義〉，以「從道性自然到本性清淨」、「不因不果的道性」、「果石木者皆有道性」等議題探究，從內在思想義理交涉的面向，釐清道性思想形成與義理發展的脈絡，並梳理其思想轉折之處，顯示出南北朝至隋唐佛道教之間思想交流的一個重要面向，在論爭之外，進而引發積極的教義移植與建構。

Daojiao yishu 道教義樞is a major work of early Tang Daoist religious doctrine. It not only covers many important Daoist religious doctrines but also reflects the period’s characteristic emphasis on metaphysics. It also shows traces of the influence of Buddhist doctrine and reveals clues as to how the assimilation of Buddhist doctrine changed Daoist religious thought. One cannot ignore the role of the Buddha-Nature doctrine as a catalyst for the emergence of Dao-Nature theory. It offered a new way to interpret the basis for Dao cultivation, which gradually brought about a transformation of the practice in religious Daoism. This paper focuses on Dao-Nature theory in Daojiao yishu, exploring the topics “from natural Dao-Nature, to purified original nature,” “Dao-Nature, without cause and effect,” and “the Dao-Nature of fruit, stone, and vegetation.” An examination of the interface between thought and doctrine helps to clarify the course of Dao-Nature’s theoretical formation and doctrinal development, while identifying the transitional points in this process. This paper reveals an important aspect of the exchange of Buddhist and Daoist doctrinal ideas from the Southern and Northern Dynasties to the Sui and Tang dynasties: in addition to debate, it also triggered active doctrinal transplantation and development.