大方廣圓覺修多羅了義經略疏 2.1093

2.1093

三、辨事師之心。此當答第三行何等行之問。故標云欲修行者，結云如是修行。然且唯說事師，更無別行，故但作此科判以當修行。謂菩薩行門本無定迹，隨當時事、隨差別機，但令善事明師，明師必自臨事指示。亦同善財於文殊處發菩提心已，聞菩薩行，文殊亦不具說，但令親近善友矣。

Third, distinguishing the mind of serving a master. This responds to the third question regarding 'what kind of practice to perform.' Hence the heading states 'one who wishes to cultivate,' and concludes 'cultivating in this manner.' However, it speaks solely of serving a master without any other practice; therefore this heading is assigned to represent cultivation. That is to say, the gates of bodhisattva practice originally have no fixed traces; they adapt to the events of the time and the varied capacities. One need only serve a luminous master well, and the luminous master will personally instruct according to the situation. This is also like Sudhana, who, having given rise to the bodhicitta at the abode of Mañjuśrī and heard of bodhisattva practice, was not told everything in detail by Mañjuśrī; instead, he was merely instructed to draw close to good friends.