妙法蓮華經玄義 9.86

9.86

然小乘戒藏不許懺重，修多羅藏，使犯重人念佛身，佛身者，念空也；亦備有常行等方法，而以偏空為體。通教亦明常行等方法，而用即空為體。別行歷別，圓行虛融，而俱用正實相為體。以此四行歷五味，論方法之體，義推可知。

However, the Vinaya-piṭaka of the Hinayana does not permit repentance for grave offenses, whereas the Sūtra-piṭaka instructs those who have committed grave offenses to be mindful of the Buddha’s body; mindfulness of the Buddha’s body means mindfulness of emptiness. It also possesses methods such as constant walking, but takes biased emptiness as its substance. The shared teaching also clarifies methods such as constant walking, but takes identical-emptiness as its substance. The practices of the distinctive teaching are sequentially graduated, while those of the perfect teaching are all-pervading and harmoniously fused, yet both take the primary real mark as their substance. Tracing these four practices through the five flavors to discuss the substance of their methods, the meaning can be deduced and understood.