Noticing the astonished look on his face, Nephis sighed.
"You must have felt a change in your connection to the Dream Realm and the Waking World when you Ascended. Didn't you?"
Sunny slowly nodded, remembering how he first explored his ability to enter the Dream Realm physically. The process wasn't instantaneous, but it also wasn't too burdensome. He just had to concentrate, feel his connection to the anchor, and reach for it. After a few minutes, he would poof out of existence in reality and appear near the Gateway in the Ivory Tower.
Leaving a tether in the waking world wasn't hard, either, although it took more time and some essence. It was as instinctual as summoning Memories or commanding Echoes.
With the knowledge Sunny had received from being collared in the Red Colosseum, he understood that this hinted at the fact that traveling between the two worlds was one of the functions of the Spell, as opposed to something tied to his Aspect.