Sraf
In Philip Pullman's His Dark Materials trilogy of novels, Dust is a mysterious cosmic particle that is integral to the plot. In Northern Lights, Lord Asriel reveals the origins of the term "Dust" to be from a passage from the slightly alternate version of the Bible in Lyra's world: "In the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return." (Genesis 3:19)
Read more about Sraf: Description, Dust As A Symbol of Knowledge, Similar Works, See Also, References