An area outside of the cosmos filled with foggy gray energy called Grandmist spirit-energy, its the current residence and "parent" of Hongmeng. Anyone whos name is on the Golden Grandmist Banner will be a controller of the Grandmist Region.
Linley was the very first person to reach the Hongmeng Grandmist in a thousand grand kalpas.(one grand kalpas is equivalent to six Quintilian years)
The Hongmeng Grandmist is often referred to as the Grandmist region or Grandsmist space.