首楞嚴義疏注經 1.498

1.498

前塵之相本自虛妄，從識變生，猶如影像，而復引起念想緣慮，名之為心。心之與境二俱虛妄，此心及境即真如海中一浮漚耳。故下文云「汝身汝心皆是妙明真精妙心中所現物。」浮塵既現，實體即隱，能覆能暗，故云惑汝真性。

The appearances of external dusts are originally false and illusory, transformed and produced from consciousness, just like images in a mirror; yet they further give rise to thoughts, cogitations, and reckonings, which are termed "mind." Both mind and object are false; this mind and object are merely a floating bubble in the ocean of tathatā. Thus the text below says: "Your body and your mind are both things manifested within the wondrous, luminous, true essence of the wondrous mind." Once floating dust appears, the true essence is hidden; it can cover and obscure, hence it says "confusing your true nature."