妙法蓮華經玄義 9.89

9.89

四、開麁者，開三藏信、法兩行，亦是決了聲聞法，是諸經之王。聞已諦思惟，得近無上道。聞即信行，思惟即法行，皆近無上道者，即大乘無相行，近於真也。開橫行者，低頭舉手，歌詠散心，皆已成佛道。三藏最淺，尚被開即妙，況通、別等，可以意得。開依小乘常行等方法者，小小微善，無一不成佛，可以意得（云云）。

Fourth, regarding opening the crude: opening the two practices of faith and dharma of the Tripiṭaka teaching is also to resolve and clarify the śrāvaka teachings, making this the king of sūtras. Having heard it and contemplated it attentively, one draws near to the unexcelled path. Hearing is the practice of faith, and contemplation is the practice of dharma; that both draw near to the unexcelled path means they are the Mahāyāna signless practice, drawing near to the true. Opening horizontal practice means bowing one’s head, raising a hand, or singing praises with a distracted mind, all having already attained the Buddha path. Even the shallowest of the Tripiṭaka teachings is opened and thereby rendered subtle; how much more so the shared and distinctive teachings, which can be understood accordingly. Opening the methods such as constant walking relying on the Hinayana means that every minor, subtle good action, without exception, leads to the attainment of buddhahood, as can be understood accordingly, and so forth.