觀無量壽佛經義疏 3.183

3.183

"‘He hears the assembly of sounds praising the four truths.’" Praising the four truths accords with what he had practiced. The two truths of suffering and origination are worldly cause and effect, which are to be severed; the two truths of cessation and the path are supramundane cause and effect, which are to be realized. Because all four dharmas are real, they are all called truths. Third, attaining the Way.