The exoteric aspects of knowledge [acting as] veils (baraqi’) on the Path.

For the Treasure is esoteric knowledge, then flowing From the Gate (al-Bab) to the Orphans (al-Aytam), while the Truth is widespread.

And an aspect came: Salman is the Treasure, And his Orphans are al-Miqdad, with Abu al-Dharr following.

And know, O seeker—may Allah the Exalted grant you success—that regarding all the names in the Quran, Allah intends by them nothing but esoteric meanings (ma‘anin batina). And He, the Exalted, has named the "Science of the Opposite" (‘ilm al-did) a tree, a river, and other such prohibitions for the sake of concealment (al-tastur).

He also named His luminous manifestation the "Tree of Mount Sinai" and [stated] that it is from "water not stagnant" (ma’ ghayr asin). He, the Exalted, named the Worlds of Light "star" and "tree" according to His saying: {And the star and the tree prostrate} (Ar-Rahman 6). For if His purpose—Glory be to Him—were these earthly plants, the address would be void, because we never see a spreading plant or one with a stem prostrating ever.