盂蘭盆經讚述 1.36

1.36

[When] the sūtra states, 'If good sons,' and so forth: The commentary says: This is the third [part], the answer. It has five sections: first, teaching them to present offerings; second, teaching them to make vows; third, teaching them to cultivate constantly; fourth, teaching them to uphold [the teaching]; fifth, teaching them to receive the command. This is the first. How supreme it is! The kindness of parents is equal to heaven and earth; even if blood were to flow in torrents, it would not suffice to repay their kindness. Therefore, among the types of faithful in the gate of the Dao, noble disciples and humble ranks alike need only present offerings to repay this boundless kindness. The cycle has several lines: first, specifying the names of the persons who practice filial piety; second, showing the season for presenting offerings. The text's meaning is understandable.