佛頂尊勝陀羅尼經教跡義記 2.187

2.187

述曰：第三、呈恭修供。文中有六意：一、合掌；二、恭敬；三、旋遶；四、行道；五、歸依；六、禮拜。言禮拜者，《大智度論》云：「有其三種，一、下品；二、中品；三、上品。」言下品禮者但合掌，中品禮者䠒跪，上品禮者五體著地，此修敬之至也。

Commentary: Third, presenting respect and cultivating offerings. Within the text there are six points: first, joining palms; second, paying reverence; third, circumambulating; fourth, walking [in procession]; fifth, taking refuge; sixth, prostrating. As for prostrating, the Dàzhìdù lùn states: "There are three kinds: first, lower grade; second, middle grade; third, upper grade." The lower-grade prostration is merely joining palms; the middle-grade prostration is kneeling; the upper-grade prostration is touching the five limbs to the ground. This is the utmost cultivation of reverence.