Sunny had spent more than a decade uncovering the dreadful secrets of the Dream Realm and slowly piecing together its truth. The road to the knowledge he now possessed had been paved with blood and smoldering ruins, and very few people — if any at all — knew as much as he did about the hidden nature of the world.
Which was not to say that others had not searched for the truth with just as much determination, and that no one else had a claim to the forbidden knowledge he harbored.
The late Sovereigns had known countless secrets, for example. There was Nephis, as well… she knew nearly as much as Sunny did, having spent the years they had been apart pursuing truths of her own. He did not have a monopoly on arcane knowledge, and neither did the world stand frozen while he was away.
