大方廣圓覺修多羅了義經略疏 2.677

2.677

若自的樂一門，隨便積習。若勝劣難分，不能自決，即憑聖力以卜應修。信手取之，不宜簡擇。

If one genuinely delights in a single gate oneself, one may simply accumulate practice in it. If superiority and inferiority are difficult to distinguish and one cannot decide for oneself, one then relies on holy power to divine what ought to be practiced. Take it at will without deliberate selection.