大方廣佛華嚴經隨疏演義鈔 26.36

26.36

疏「前半方便、後半清淨」者，以各下句有方便清淨言故。言「皆上句果、下句因」者，從多分說，則方便為因、清淨為果。若從通說，俱通因果。方便約因，善巧出生於土。方便約果，依正業用是淨土相清淨。約因，離諸障蓋清淨；約果，無有三惡八難等故。

Regarding the Commentary's statement 'the first half is upāya and the second half is purification,' this is because the lower lines of each contain the words upāya and purification. As for the statement 'the upper lines are all fruit and the lower lines are cause,' speaking from the predominant aspect, upāya is the cause and purification is the fruit. If speaking from general application, both pertain to cause and fruit. With respect to cause, upāya is skillfully generating the land. With respect to fruit, upāya means that the activities of the insentient environment and sentient beings are the characteristics of a pure land. With respect to cause, purification is being pure from all hindrances and coverings; with respect to fruit, it is because there are no three evil destinies, eight difficulties, and so forth.