Yogaśikhā upaniṣad第1章の研究――Yogabījaとの韻律比較――

抄録

This paper clarifies the textual correlation between the first chapter of the Yogaśikhā upaniṣad （YŚU） and the Yogabīja （YB） by comparing their versifications. While textual similarities between YŚU and YB have been mentioned before, there is no previous study comparing the two texts by meter. Both texts contain about 95% pathyā and vipulā. In this paper, I compare hemistiches by lame and the non-śloka meters: indravajrā, upendravajrā, indravaṃśā, vaṃśasthavila, and vasantailakā.

The comparison shows that the number of lame meters in YB is larger than that in YŚU and that the common hemistichs in both texts are regularized in YŚU. This may indicate that the lame meter in YB were modified in YŚU. A comparison of the exceptional meters in the two texts shows that in some cases the meter is the same, but words are different in hemistiches common to both texts in the special meter. YŚU tends to retain the meter rather than the wording. The correlation between two texts is thus confirmed through this comparison.