Perfectly
Despite the fact he had concluded that the ability was useless, Leonel was still fascinated by the feeling. There was something especially immersive about having all of his ideas and thoughts floating around him, it made it all more real, more tangible.
Although Leonel had always been able to sink into his Dream World whenever he wanted, the disconnect between it and reality was such that he was always keenly aware of his real body's place in the world. Because of that, he could never fully enjoy himself.
As such, he had always kept his Dream World to the bare minimum. White walls, pale and transparent Dream Clones, even his Dreamscape was nothing more than a skeleton of ideas, like jotted down notes only he could understand.
When things were like this, though, Leonel felt more license to have fun.