妙法蓮華經玄義 10.112

10.112

三、約行人心者，說華嚴時，凡夫見思不轉，故言如乳。說三藏時，斷見思惑，故言如酪。至方等時，被挫耻伏，不言真極，故如生蘇。至般若時，領教識法，如熟蘇。至法華時，破無明，開佛知見，受記作佛，心已清淨，故言如醍醐。行人心生，教亦未轉；行人心熟，教亦隨熟。

Third, regarding the practitioner's mind: when the Avataṃsaka was preached, the view and thought [afflictions] of ordinary beings were not transformed, hence it is said to be like milk. When the Tripiṭaka was preached, the afflictions of view and thought were severed, hence it is said to be like curd. Arriving at the Vaipulya, they were humbled and made ashamed and submissive, but it had not yet spoken of the true ultimate, hence it was like raw butter. Arriving at Prajñā, they managed the teaching and recognized the dharmas, like ripened butter. Arriving at the Lotus Sūtra, ignorance was shattered, the Buddha's knowledge and vision was opened, and they received vyākaraṇa to become Buddhas; their minds having become pure, it is therefore said to be like clarified butter. When the practitioner's mind is raw, the teaching is also not yet transformed; when the practitioner's mind is ripe, the teaching ripens accordingly.