從瑜伽行派到柏拉圖主義的轉依

Transformation of the Basis from Yogācāra to Platonism

本論文將「轉依」（āśraya-parāvṛtti）視為一個長期調攝之因果流的圓滿結果，而非自發的、無時間性的事件。我們隨世親與玄奘，將阿賴耶識（ālaya-vijñāna）轉成光明智慧的過程，界定為一種超越意向的因果性，其規模遍及宇宙，超出任何主觀的企圖。諸種子與習氣經無量生世之熏習與調伏，直至反轉成為可能，乃至必然，於有為之流中遂得實現。本文通過瑜伽行派的八識體系來描繪其機理，特別聚焦於末那識。末那識兼具雙重作用：一方面以「我」之分別維繫迷惑，另一方面又暗示染污作用之止息，此處正是轉變架構中的關鍵樞紐。隨玄奘之宇宙論擴展，此「轉依」升為世界尺度：所依之識支撐三界六道，其清淨則重構共用之經驗領域。接著，我們轉向柏拉圖諸學者，以闡明此轉化歷程的階段結構。我們的研究顯示，心智之迴轉（noetic reversal）與「轉依」的「轉」（parāvṛtti）相互呼應，然二者間仍存不可調和之差異。瑜伽行派之「無外」論認為，諸天、無色定與外境皆為內種業力之展開，「外緣」僅為助緣；而柏拉圖諸學者則設定一可知之宇宙秩序，直接參與心識流之轉化。我們最終指出，「轉」之前必有以調攝為主的修行，其核心是一種「任運而為」的體認，使識流對自身的趨向變得透明，從而揭示其對當代意向性、因果性與形上學論域的深遠啟示。

This paper presentsāśraya-parāvṛtti as the consummation of a long-regulated causal stream, rather than a spontaneous, achronological event. With Vasubandhu and Xuanzang, we characterise the transformation of theālaya-vijñāna into luminous wisdom as a transintentional causality of cosmic scale that exceeds any subjective enterprise. Seeds and habit-energies are perfumed and regulated across innumerable lives until reversal becomes possible, indeed, inevitable, within a conditioned stream. We map the mechanics through Yogācāra’s eight consciousnesses, focusing on the kliṣṭamanas, whose dual role, sustaining illusion via the discrimination of an‘I’and, at once, intimating the cessation of defiled operations, constitutes the pivotal juncture in the architecture of transformation. With Xuanzang’s cosmological expansion, the turning becomes worldscale; the basis underpins the three realms and six destinies, so its purification reconfigures a shared experiential field. We then detour to the Platonists to help clarify the staging process of the transformation. While our results show that noetic reversal echoes parāvṛtti, there remains an irreconcilable difference. Yogācāra’s non-externalism treats devas, formless attainments, and environments as karmic unfoldings of internal seeds, with‘external’factors as mere dominant conditions, whereas Platonists posit an intelligible cosmic order that figures directly into the stream’s transformation. We conclude that parāvṛtti is preceded by practice that is principally regulative, an attuned‘letting-be’through which consciousness becomes transparent to its own direction, revealing broader implications for contemporary discourse on intentionality, causality, and metaphysics more broadly.