大方廣佛華嚴經疏 19.23

19.23

Second, explaining the name: "initial" has two meanings: first, the beginning of the three kinds of generating the mind; second, the beginning of the ten abidings. "Generating" also has two meanings: first, initiating the aspiration to seek above; second, the unveiling of the three virtues, because of being able to know the wisdom of the Buddhas of the three times, because of forever severing all webs of doubt, and because of attaining the Tathāgata's single body and immeasurable bodies and so forth. Having long investigated and examined in the station of faith, when arriving at this station one is suddenly and completely enlightened; therefore, attaining merit equal to the station of the fruit and subsuming boundless virtues, it receives this designation.