淨名經集解關中疏 1.187

1.187

說除八難是菩薩淨土。菩薩成佛時國土無有三惡八難　八難者三塗北洲無想天世智邪辯佛前佛後生聾生盲也。有說願生善處輪除初五難。發正願輪除世智辯。聰值善人輪除佛前佛後。深種善根輪除生聾盲也。又諸經明。或聞佛名菩薩名相好名經名陀羅尼名常住二字等。皆除三惡八難見佛聞法也。且八難患之極能除利之。最行不至艱功濟甚大。凡諸學去可不勉歟。

"Preaching the removal of the eight difficulties is the bodhisattva's pure land. When the bodhisattva attains Buddhahood, his realm is free from the three bad destinies and the eight difficulties." The eight difficulties are: the three paths, the northern continent [Uttarakuru], the heaven of thoughtlessness, worldly sophistry and heterodox eloquence, before or after a Buddha, and being born deaf or blind. Some say that the wheel of vowing to be born in wholesome places removes the first five difficulties; the wheel of giving rise to right vows removes worldly intellect and eloquence; the wheel of meeting good persons removes being before or after a Buddha; and the wheel of deeply planting wholesome roots removes being born deaf or blind. Furthermore, various sūtras explain that hearing the name of a Buddha, the name of a bodhisattva, the name of the physical marks, the name of a sūtra, the name of a dhāraṇī, or the two characters 'eternal abiding' all remove the three bad destinies and the eight difficulties, enabling one to see the Buddha and hear the Dharma. Moreover, the eight difficulties are the utmost calamities, and being able to eliminate them is of the greatest benefit; the practice is not extremely arduous, yet its saving power is immense. How can practitioners fail to exert themselves?