大方廣圓覺修多羅了義經略疏 2.591

2.591

二、湛海澄空觀。湛海則波瀾不動，先靜觀以反流澄空，則水性清明，後寂觀以顯性。

2. The contemplation of the clear ocean and empty sky. In the clear ocean, waves are unmoving: first using the contemplation of stillness to turn back the flow and clear the sky, the water's nature becomes pure and clear; later using the contemplation of quiescence to manifest the nature.