首楞嚴義疏注經 5.303

5.303

「我初諦觀，經三七日，見鼻中氣出入如煙，身心內明，圓洞世界，遍成虛淨，猶如琉璃。煙相漸銷，鼻息成白。」

"When I first contemplated closely, after three periods of seven days, I saw the breath moving in and out through my nose like smoke. Body and mind became internally bright, completely penetrating the world, which everywhere became void and pure, just like vaidūrya. The mark of smoke gradually dissolved, and the nasal breath became white."