瑜伽師地論略纂 1.10

1.10

In the questions and answers, the Vibhāṣā provides three explanations. According to the first explanation, only the first division is called a bhūmi, while the latter four are not called bhūmis. According to the latter two explanations, all five are called bhūmis; because the treatise is concise, it mentions only seventeen as bhūmis, but the latter four divisions are not unentitled to be called bhūmis. This is the second explanation. The third explanation can be understood from the text. If one were merely to say "the bhūmis of yoga", one would not know whose bhūmis they are, so the designation "master" (yogācāra) is introduced. If one were merely to say "the master's bhūmis" without saying "yoga", one would not know which master's bhūmis they are; hence it is called as a compound "Yogācārabhūmi" (The Bhūmis of the Yogācāra). If one were merely to say "yogācāra" without saying "bhūmi", one would not merely wish to explain yoga, but using the master nominally, one wishes to explain the bhūmi-teachings upon which that master relies, causing [students] to cultivate and learn in accord with them, so as to become such masters and realize such bhūmis.