金剛三昧經論 1.37

1.37

論曰：此明為他皆說深法。可度眾生者，如來所化一切眾生莫非一心之流轉故。皆說一味者，如來所說一切教法無不令入一覺味故。欲明一切眾生本來一覺，但由無明隨夢流轉，皆從如來一味之說，無不終歸一心之源。歸心源時皆無所得，故言一味即是一乘。初略標文竟在於前。

The treatise says: This clarifies that for the sake of others, he preaches the profound dharma to all. "Sentient beings who can be saved" means that among all sentient beings transformed by the Tathāgata, there are none who are not the transmigration of the one mind. "Only the single taste is preached" means that among all the teachings spoken by the Tathāgata, there are none that do not cause entry into the taste of the single awakening. It intends to clarify that all sentient beings are originally of the single awakening, but merely due to ignorance they transmigrate along with dreams; following the Tathāgata's teaching of the single taste, there are none who do not ultimately return to the source of the one mind. When returning to the source of the mind, there is nothing attained; therefore, it is said that the single taste is precisely the One Vehicle. The initial text of brief marking has been completed above.