觀音玄義 1.32

1.32

六釋冥顯兩益者，冥是冥密、顯是彰露，大聖恒以二益利安一切，而眾生及以下地日用不知。譬如日月照世，盲雖不見，實荷深恩，故《藥草喻》云「而諸草木不覺不知」。只同是一地，下品不知上品，冥顯兩益，如文殊不知妙音神力所作，以不知故，名為冥益，此亦約六即判位。若就前問答，不見形聲，密荷深祐，名為冥益，聖人之益雖不可知，聖欲使知，蜫蟲能知；如後問答，親覩色身，得聞說法，視聽彰灼，法利顯然。故知觀音從冥益得名，普門從顯益得名，以冥、顯因緣故，名觀世音普門也。

Sixth, explaining in terms of the two benefits, covert and overt: 'covert' means hidden and secret; 'overt' means manifested and clear. The Great Sage constantly benefits and pacifies all with these two benefits, yet sentient beings and those of lower stages use them daily without knowing. For example, as the sun and moon illuminate the world, although the blind do not see them, they truly receive their profound grace; therefore the 'Parable of the Medicinal Herbs' says: 'Yet the various plants and trees are unaware and unknowing.' Even on the same stage, the lower grade does not know the upper grade: in terms of the two benefits, covert and overt, just as Mañjuśrī did not know that which was performed by the supernatural power of Gadgadasvara, being unknown, it is called covert benefit. This too determines positions according to the six identities. If in terms of the previous question and answer, where forms and sounds are not seen yet one secretly receives profound blessing, it is called covert benefit. Although the sage's benefit cannot be known, if the sage wishes to make it known, even insects can know it; as in the latter question and answer, personally beholding the physical body, hearing the exposition of the Dharma, seeing and hearing clearly and brightly, the benefit of the Dharma is manifest. Hence we know that Avalokiteśvara receives its name from covert benefit, and Universal Gate receives its name from overt benefit. Through the conditions of covert and overt, it is named Avalokiteśvara Universal Gate.