Inwardness (Butun) were fixed properties of Him, then transformation from a state of manifestation to a state of inwardness—and vice versa—would be established for Him. If He were Outward, He would be from something; and if He were Inward, He would be in something. The Outward is limited and the Inward is veiled, yet He is neither limited nor veiled, nor from something, nor in something.
He was called by the names Outward and Inward so we may know that what is Outward to us is Inward from us, and vice versa. We cannot see Him or describe Him as He is, because He transcends quiddities, "How-ness," and everything. The cause [of limitation] lies in the servants, not in the Worshiped, who is manifest by His Essence and seen through the attributes of His creatures.
Let us strike a parable for you regarding Night and Day, which represent Inwardness and Manifestation:




