法華義疏 9.92

9.92

通皆得喻，中道之教圓正如珠，陶神養性事同於酒，教既具兩，解亦例然。但珠正譬解謂菩提心，故下合云「一切智願猶在不失」。酒譬二義，一者喻教，二者飲酒益身喻稟教生解，故知具二義也。但酒正喻教也。

Broadly speaking, both can serve as parables: the teaching of the Middle Way is perfectly upright, just like the jewel; cultivating the spirit and nourishing nature is identical in function to wine. Since the teaching comprises both, the same holds true for understanding. However, the jewel properly represents understanding—namely, the bodhicitta; hence the correspondence below says, "the vow for omniscient knowledge still remains and is not lost." The parable of wine has two meanings: first, it illustrates the teaching; second, the drinking of wine benefiting the body illustrates that receiving the teaching generates understanding. Thus we know it possesses both meanings. Yet the wine properly illustrates the teaching.