大方廣圓覺修多羅了義經略疏 1.618

1.618

四、遣離離之離。亦可一離妄、二離覺、三遣離、四遣遣。皆言遠離者有二：一止、二觀。止離者，休心息意永不追攀，如人遇怨不應共處。觀離者，虛妄之法體性皆空，如夢枷鎖，寤則已離。故下文云「知幻即離」。

Fourth: discarding the departure from departure. One may also take them as: 1. departing from delusion; 2. departing from enlightenment; 3. discarding departure; 4. discarding the discarding. There are two kinds of all these statements of "departing far": first, śamatha; second, vipaśyanā. Departing through śamatha means resting the mind and quieting thoughts, never chasing after them, like encountering an enemy with whom one should not dwell. Departing through vipaśyanā means that illusory dharmas are completely empty in nature, like shackles in a dream from which one is already freed upon waking. Therefore the text below says: "Knowing illusion is itself departure."