Before entering through the portal, Aster stole a gaze at the yellow castle in which the third node was, there was a small tinge of unwillingness, because he wanted to take it into the mind space too.
Though unlike the walls that formed the underground maze, the castle wasn't fully made of yang accumulation crystal, it was still a material that has been radiated by yang energy for quite some time, it would definitely be a decent decoration for the palace that he was planning to build for his girls.
Unfortunately, he couldn't because he reached his limit when taking the walls inside of the mind space.
Certainly, the mind space was better than a spatial ring, as practically everything could be sent into it, but it wasn't as simple as just thinking about it to make it happen, like when using a spatial ring.
