Everyone go get their tin foil hats because this is about to get crazy. Here we go! The Books of Sorrow mention five Worms in Verse 1:9 - The Bargain: Yul, Eir, Xol, Akka, and Ur. Oryx, originally called Aurash, changed his name to Auryx once he devoured the Worm Yul. He later became Oryx once he killed Akka and took the secret of the Deep, the power to Take. In verse 4:2 - Majestic. Majestic, Oryx is holding a conversation with another entity that shares the HIve's view of the universe's perfect shape. Could this be Xur? My belief is that Xur is selling us weapons and armor because to the Hive, challenging the right to existance is the greatest honor that they can receive. Verse 4:4 - More Beautiful to Know has Oryx talking about how much he loves his sisters for trying to kill him; he says "The only way to make something good is to make something that can’t be broken. And the only way to do that is to try to break everything." He then goes on to say "I think that Savathûn and Xivu Arath are trying to steal the tablets from me. They must have cut off my tribute while I was away communing with the Deep. I love them so dearly. No one else is clever or strong enough to try to break me. No one else can give me this gift." Xur is selling us the weapons/armor of defeated races so that Oryx and Xivu Arath and Savathun can learn from their sword logic and bring the universe to its perfect Shape