成唯識論演祕 4.494

4.494

此第二釋，隨所緣識所生之地，七與彼地第六意識增上受俱。俱者即是喜、憂等同。何所以然？由緣彼地引業之果，故與當地增上受同，如生惡處憂受增上，餘趣准知。前據與彼能引受同，後同所緣當地增受，故二別也。有義：隨第六識增上受俱，如初轉依隨六增上，故受俱起亦隨第六。

This is the second explanation: according to the plane where the consciousness taken as object is born, the seventh is accompanied by the predominant feeling of the sixth consciousness of that plane. 'Accompanied' means being identical in joy, sorrow, and so on. Why is this so? Because it takes as object the result of the projecting karma of that plane, it is identical to the predominant feeling of that plane, just as when born in an evil realm, the feeling of sorrow is predominant; the other destinies are known by analogy. The former [explanation] is based on being identical to the projecting feeling, while the latter is identical to the predominant feeling of that plane taken as object; thus the two differ. Another opinion holds: It is accompanied by the predominant feeling following the sixth consciousness; just as in the initial transformation of the basis it follows the predominance of the sixth, so the co-arising of feeling also follows the sixth.