妙法蓮華經玄贊 7.267

7.267

贊曰：此中有三：一劫，空理為寶故；二國；三土相。土相有五：一土平，二地，三樹，四無惡，五華淨。「丘坑」者《玉篇》「地高曰丘，大塚曰丘」。

The Commentary says: Herein there are three: 1. the kalpa, because the principle of emptiness is the jewel; 2. the land; 3. the features of the buddha-field. The features of the buddha-field are five: 1. flatness of the land; 2. the ground; 3. trees; 4. absence of evil; 5. flowers and purity. Regarding 'mounds and pits' (丘坑), the Yupian states: 'High ground is called a qiu (mound); a great mound or burial mound is called a qiu.'