大乘法苑義林章 7.21

7.21

佛土義，以八門分別：一顯差別、二出體性、三明因行、四彰果相、五釋分量、六解處所、七共不共、八諸門辨。

The meaning of Buddha lands is distinguished by eight gates: first, revealing distinctions; second, presenting their essential nature; third, clarifying causal practice; fourth, demonstrating resultant marks; fifth, explaining dimensions; sixth, understanding locations; seventh, common and uncommon; eighth, analysis through various gates.