華嚴經探玄記 15.46

15.46

四釋文中，心王菩薩說者，顯世識自在故，有劫數也。於中有三。初舉十世界校量漸次、次類顯百萬、後辨最後玄極。如安樂世界等，以何為晝夜？釋：或以蓮花開合辨用，當娑婆一劫。又釋：此娑婆一劫中總有若干日夜，依此日夜數數一劫為一日夜，還數王若干劫，方為安樂世界之一劫。則以此劫量於後諸世界，皆准此量計可知。是則至最後世界一劫，於最初世界，當不可說不可說劫也。至賢首剎已後，則剎海平等，無有優劣。是故此中說普賢等充滿者，以望下最極故。以普賢為量，望上猶在數中故不說。唯佛充滿此諸世界，《大佛名經》中亦說。又玄奘法師別翻一卷，名顯無邊佛土經，是此品也。

Fourth, in explaining the text: that it is spoken by the Bodhisattva Mind King demonstrates that due to sovereignty over worldly consciousness, there are numbers of kalpas. Within this, there are three [parts]: first, raising ten worlds to calculate and measure the gradation; second, analogously displaying the millions; third, distinguishing the final, abstruse limit. As for [questions such as] what constitutes day and night in worlds such as the Sukhāvatī-lokadhātu, the explanation is: it may be distinguished through the opening and closing of lotuses, which corresponds to one kalpa in the Sahā world. Another explanation: in one kalpa of this Sahā world there are a total of so-many days and nights; counting one kalpa as a single day and night based on this number of days and nights, one then calculates so-many kalpas to make a single kalpa of the Sukhāvatī world. Then, using this kalpa to measure the subsequent worlds, one can know them all by calculating according to this standard. Thus, when reaching a single kalpa of the final world, it corresponds to ineffably ineffable kalpas in the initial world. After reaching the Bhadramukha realm, the ocean of realms is equal, with neither superiority nor inferiority. Therefore, when it speaks here of Samantabhadra and others filling [them], it is because it is the utmost culmination when viewed from below. If taking Samantabhadra as the measure, viewed from above he is still within the count, so this is not stated. That only Buddhas fill these worlds is also spoken of in the Da foming jing. Moreover, Dharma Master Xuanzang translated a separate single fascicle titled Xian wubian fotu jing (Sūtra Revealing Boundless Buddha-Lands), which is this very chapter.