『マハーマーヤー・タントラ』所説の「性的瑜伽」――アランカーラシュリーの解釈を中心に――

抄録

In the present paper, the author mainly examines Alaṃkāraśrī’s interpretations of sexual yoga from the point of view of the “theory on protection of sexual yoga” on the basis of the descriptions of the Mahāmāyā-tantra （abbr. MMT） and the *Mahāmāyā nāma pañjikā （abbr. Pañ）, a commentary of Alaṃkāraśrī.

In the Pañ, Alaṃkāraśrī affirms sexual yoga, quoting four related pādas of MMT and emphasizes that it is necessary for one to attain enlightenment composed of paramānanda of the caturānanda described in the Hevajra-tantra and so forth.

According to a previous study, Vāgīśvarakīrti wholly affirms sexual yoga from the standpoint of the Cittamātra theory in his Saṃkṣiptābhiṣekavidhi and Abhayākaragupta also partially affirms it from the standpoint of the Madhyamaka theory in his Vajrāvalī. Although Vāgīśvarakīrti and Abhayākaragupta indirectly insist on the “theory on protection of sexual yoga” on the basis of yukti, as the Cittamātra theory and the Madhyamaka theory respectively, Alaṃkāraśrī directly defends sexual yoga on the basis of āgama such as the MMT.

Thus, it can be pointed out that defenders of sexual yoga can be divided into two types: 1） the āgamānusārins such as Alaṃkāraśrī, and 2） the yuktyanusārins such as Vāgīśvarakīrti and Abhayākaragupta.