法華論疏 1.206

1.206

即二也。震動世界，釋依器世間。以過去佛將說法華，地六種動；今亦如是。所以依動地者，說大法，破大部故、大利益故、令眾生大歡喜故也。及知過去無量劫事等故者，釋依眾生世間。過去無量劫佛說法華時，數盛天雨四華，大眾歡喜；今亦如是，以說第一理之法，暢諸佛之心，滿眾生之願，數盛天雨四華，大眾歡喜。問：大眾歡喜可是眾生世間，天雨四華云何是眾生世間？答：天則眾生數故也。

These are the two. "Shaking the world" explains being based upon the receptacle world. Because when past Buddhas were about to expound the Lotus, the earth moved in six ways, now it is also like this. The reason it is based upon shaking the earth is that he expounds the Great Dharma, shatters great factions, brings great benefit, and causes sentient beings to have great joy. "Knowing the events of immeasurable kalpas in the past, and so forth" explains being based upon the world of sentient beings. When past Buddhas of immeasurable kalpas expounded the Lotus, repeatedly in full glory the heavens rained the four flowers and the great assembly rejoiced; now it is also like this: because he expounds the Dharma of the supreme principle, expresses the intention of the Buddhas, and fulfills the vows of sentient beings, repeatedly in full glory the heavens rain the four flowers and the great assembly rejoices. Question: The rejoicing of the great assembly may well be the world of sentient beings, but how is the heavens raining the four flowers the world of sentient beings? Answer: Devas belong to the category of sentient beings.