金光明經玄義 2.20

2.20

次觀心明經王者。觀心即中是貴義，觀心即空是慧義，觀心即假是朝會義。是為觀心中經王也。觀心論位者，眾生本有理性金光明，心但有名，即名字金光明。念念修觀，即觀行金光明。觀心淳厚，即相似金光明。會入法流，即分證金光明。盡邊到底，即是究竟金光明。若不修觀，徒聞何益？如遙羨寶山，足不涉路，安可得乎？為此義故，須觀心一番，令聞慧具足也。

Next, clarifying the king of sūtras by contemplating the mind: contemplating the mind as precisely the middle is the meaning of 'noble'; contemplating the mind as precisely the empty is the meaning of 'wisdom'; contemplating the mind as precisely the provisional is the meaning of 'holding court'. This is the king of sūtras within the contemplation of mind. Discussing stages from the perspective of contemplating the mind: the Suvarṇaprabhāsa of the innate principle originally possessed by sentient beings, when in the mind it is merely a name, is the Suvarṇaprabhāsa in Name Only. Cultivating contemplation thought-moment by thought-moment is the Suvarṇaprabhāsa of Contemplative Practice. When the contemplative mind is pure and ripe, it is the Suvarṇaprabhāsa of Resemblance. Entering into the stream of dharmas is the Suvarṇaprabhāsa of Partial Realisation. Reaching the utmost limit and bottom is precisely the Suvarṇaprabhāsa of Ultimate Attainment. If one does not cultivate contemplation, what benefit is there in merely listening? It is like gazing longingly at a treasure mountain from afar without taking a step on the road—how could one reach it? For this reason, one must undertake a round of contemplating the mind to make the wisdom gained through hearing complete.