觀無量壽佛經義疏 3.106

3.106

"‘All the remaining marks of the body are like those of Avalokiteśvara, equal and without difference.’" This refers to the face, arms, hands, and so forth. Second, the characteristics of walking has two parts: first, the ten directions quaking; second, the places that quake being adorned. First, the ten directions quaking.