十界中由第一地獄界至第六天界為六道。第七聲聞界，第八緣覺界，第九菩薩界，第十佛界為四聖。法華玄義二曰：「十界謂六道四聖也。」
The six ways of rebirth, see above, and the four holy ways of rebirth, the latter being respectively into the realms of śrāvakas,pratyekabuddhas, bodhisattvas, and Buddhas; the ten are known as the 十界.