首楞嚴義疏注經 5.396

5.396

具云吠瑠璃，此翻遠山寶。由觀自心風力所轉，觀成得用，身心洞徹猶彼瑠璃，故以名焉。所值之佛名無量聲，亦由觀風而立名耳。開示本覺而觀風者，風即動相，既屬於妄，元來無動，無動即本覺也，由是欲顯無動而觀於動。

In full it is said *vaiḍūrya*; here it is translated as 'gem of the distant mountain'. Through contemplating how one's own mind is turned by the power of wind, when the contemplation succeeded and its function was obtained, his body and mind became thoroughly clear and transparent like that beryl (vaiḍūrya); hence he was named after it. The buddha whom he met was named Immeasurable Sound, which was also named from contemplating wind. Revealing original awakening and contemplating wind: wind is the characteristic of movement; since it belongs to delusion, originally there is no movement. The absence of movement is precisely original awakening. Therefore, wishing to reveal non-movement, he contemplated movement.