Humanity
"It is not the number of palaces that measures an individual's power, but the complexities therein."
"A mind palace is the physical manifestation of an individual's understandings of his or her own powers. The higher the comprehension abilities and the more time spent designing the palace, the more complicated it will be."
"Throughout history, there have been many individuals that have reached the apex with just a single mind palace. These people were the true geniuses of their eras with no one to stand against them."
"The most notable was the first Human Ancient. Hundreds of billions of years ago he was one of the first waves of humans to reach the apex and created a path to the sanctuary for all of mankind here on the Beast World."
"Before that, humans were considered to be just one of the many lesser races that weren't suitable for cultivation resources. There were ridiculed at every turn and treated as simple slaves."