成唯識論演祕 6.620

6.620

釋如《燈》、《疏》。有義：生異界地既用當生處愛潤生，欲界異趣亦緣當生處愛潤也。業變苦具為樂令愛，令愛樂具現在我前，名我現境，非現我身名我現境。

The explanation is as in the Cheng weishi lun liaoyi deng and the Commentary. One opinion says: Since taking birth in a different realm and stage uses craving for the place to be born to moisten birth, in different destinies of the desire realm one also moistens [birth] through craving directed at the place to be born. Karma transforms instruments of suffering into pleasure to induce craving, causing the pleasurable instruments to be present before oneself; this is called the present realm of the self, and it is not one's present body that is called the present realm of the self.