新華嚴經論 34.10

34.10

三至處求覓德雲比丘者，明至勝樂國妙峯山，表無染寂靜為勝樂，身心不動如山，是習定也；十方求覓是觀也。是十方觀圓融心境，使無邊等虛空故。

Third, regarding arriving at the place and searching for the monk Meghaśrī: This clarifies arriving at Mount Sugopita in the land of Sūpratiṣṭhita. Undefiled tranquility is symbolized by "Sūpratiṣṭhita" (supreme joy); body and mind unmoving like a mountain represents practicing concentration (samādhi). Searching in the ten directions is contemplation (vipaśyanā). This is the ten-direction contemplation fusing mind and realm, making them boundless and equal to empty space.