金光明最勝王經疏 1.129

1.129

贊曰：了法無疑德。祕密，即四祕密。即三空性，名為甚深。如《法華論》釋。諸佛智慧有五甚深，智慧之性亦名智慧故。一義甚深、二體、三內證、四依止、五無上，非二乘境故名甚深。後智能了、根本智知，事理疑盡，故無復惑。

Commentary: The virtue of realizing the Dharma without doubt. 'Secret teachings' refers to the four secrets. The three kinds of emptiness are called 'profound'. As explained in the Saddharmapuṇḍarīka-upadeśa, the wisdom of the buddhas has five profundities, for the nature of wisdom is also called wisdom: 1. profundity of meaning, 2. profundity of essence, 3. profundity of internal realization, 4. profundity of basis, and 5. unexcelled profundity; because it is not the realm of the two vehicles, it is called profound. Subsequent wisdom is able to comprehend, and fundamental wisdom knows; doubts concerning both phenomena and principle are exhausted, hence 'with no further confusion'.