Owner of the Mansion

With everyone acquiring their own storage equipment and each of it having different contents, everyone became happy at their harvest.

Though the storage equipment was made from a higher world or dimension, it could be used by anyone as long as one poured in sufficient energy, no matter the type.

By this, I could make a guess that the differing inherent energy in the higher worlds will be not as important anymore. Maybe even a Level 1 energy such as Spirit Energy can be upgraded or leveled up or even assimilated by a higher energy. Just like the plan of the Invading World. They're corrupting the denizens with the promise of reaching higher heights when their world was completely assimilated. 

However, if it came from just an individual, there's probably a prerequisite by doing that or it will also naturally occur as if they finish adapting to the environment.