大方廣圓覺修多羅了義經略疏 2.618

2.618

Seventh, the contemplation of the fruit falling and the flower blooming. That is, using the tree of tranquil meditation, one bears the fruit of quiescent cessation, the Middle Way. "Subsequently blooming the flower" means that one again enters the realm of sentient beings with the illusory contemplation to deliver all sentient beings, causing them equally to attain the fruit of nirvāṇa.