首楞嚴義疏注經 8.76

8.76

此標也。即用此乾慧中智合中道理，理智俱中，故名中中。又離一切二邊相故，雙照二諦無不真實。又此中智念念相繼而進上位，故云中中流入。言流入者，顯無功用任運而進也，以證中道自然流入薩婆若海。此則更增一番智斷功能，故云圓妙開敷。此即於乾慧心增明觀智以為方便，得入十信。

"This sets forth the topic. Using the wisdom within this dry wisdom, one harmonizes with the principle of the Middle Way. Both principle and wisdom are in the Middle, hence called 'Middle of the Middle'. Furthermore, being free from all characteristics of the two extremes, it illumines both truths, both of which are nothing but reality. Moreover, this Middle wisdom progresses to higher stages in thought after thought, hence it is said 'flows inward into the Middle'. 'Flows into' reveals progressing effortlessly and spontaneously; by realizing the Middle Way, one naturally flows into the ocean of sarvajña (all-knowledge). This adds yet another degree of the function of wisdom and severance, hence it is said 'blossoming into perfect wondrousness'. This means increasing and clarifying contemplative wisdom in the mind of dry wisdom as an expedient means, thereby entering the ten faiths."