妙法蓮華經玄義 1.172

1.172

若有十因緣法所成眾生樂聞一切世界，一切陰、界、入，及不可說世界，不可說陰、界、入等事者，如來即直說一切正世界及陰、入等，一切翻覆世界及陰、入等，一切仰世界及陰、入等，一切倒住世界及陰、入等，一切穢國、一切淨國、一切凡國、一切聖國，如是等種種世界，不可說世界，種種陰、入、界，不可說陰、入、界（云云）。或作四言，乃至九言偈重頌，或孤起偈，或能知國土陰、入、界者，即與記成佛。或能知者，即具禁戒。或譬喻說，或說昔國土事。或說昔受生事。或說廣大事。或說希有事。或說論議事。如是等十二種說悅其樂欲，或生其善，或破其惡，或令悟入，是名四悉檀起別教十二部經。

If there are sentient beings constituted by the Dharma of the ten causes and conditions who take joy in hearing matters of all worlds, all aggregates, realms, and sense fields, as well as ineffable worlds and ineffable aggregates, realms, and sense fields, etc., the Tathāgata then directly expounds all upright worlds and aggregates, sense fields, etc.; all overturned worlds and aggregates, sense fields, etc.; all face-up worlds and aggregates, sense fields, etc.; all inverted worlds and aggregates, sense fields, etc.; all defiled lands, all pure lands, all ordinary lands, and all noble lands; such diverse worlds, ineffable worlds, diverse aggregates, sense fields, and realms, and ineffable aggregates, sense fields, and realms (and so forth). Or making four-syllable up to nine-syllable verses in repetition; or independent verses; or predicting that those who can know the lands, aggregates, sense fields, and realms will attain Buddhahood; or that those who can know them are endowed with the prohibitions; or expounding by means of parables; or expounding matters of past lands; or expounding matters of past rebirths; or expounding vast and great matters; or expounding rare matters; or expounding through discussion. Such twelve kinds of expounding bring joy to their desires, or generate their wholesome roots, or destroy their evils, or cause them to awaken and enter—this is called the four siddhāntas giving rise to the twelve divisions of sūtras of the distinctive teaching.