The text "窥基解 明 明昱赘言" is likely referring to two separate individuals and a commentary, not a single person. Kūkai (窥基) was a prominent Korean monk of the Silla dynasty, known for his translations and commentaries on Mahayana sutras, particularly related to the Yogacara school. The phrase "明明昱赘言" might refer to a commentary or explanation by a different scholar, possibly named Mingyu (明昱).