成唯識論演祕 4.660

4.660

問：今盲冥者，有境無根而識不生，證識依眼，如有眼者，由境無故而識不生，應識依境。又但有根，識即依生，色界應有鼻、舌兩識。

Question: Now for a blind person, the object exists but the faculty is absent, and the consciousness does not arise, which proves that the consciousness relies on the eye. If so, for someone who has eyes, when the consciousness does not arise because the object is absent, the consciousness should rely on the object. Furthermore, if the consciousness simply arose whenever the faculty exists, the form realm ought to have the two consciousnesses of nose and tongue.