This is something they truly start to get once they reach Sage. They gain an Icon, and in Lindon's case, he now has a bunch of them. His first one was the Void Icon. Which represents the Void. The power it has deals with the annulment of existence even down to historical events. For example, he can make it so a past event never happened.
Also, correction, not even as an Abidan, Lindon could already shake the whole universe with his Dreadgod gear. Iterations are a universe in this context. He got more powerful after this.
After his ascension he can fight Fiends within Class II. Which are powerful enough to literally eat whole iterations.
Besides that, his authority deals with his voice. He can quite literally command things to happen. Reality changes to suit his verbal commands.