Among the All Heavens and Myriad Realms, the Eternal Life Realm, where the Nine Realms unite, is the highest plane. It is called the highest for two reasons: firstly, time flows slower here than in other planes; secondly, it is also the place closest to the Gate of Merit.
In the void of the Eternal Life Realm, there is a specific coordinate location. The space-time at this coordinate is extremely unstable, and upon opening it and stepping through, one enters a very special independent space.
This independent space did not exist during the Opening the Heavens and Earth; it is an artificially constructed space.
This place is also called the Heaven of Merit.
However, the Heaven of Merit consists of only one mountain. There is only one mountain here, and on the mountain, there is a cave known as the Passage of Merit. Upon entering the Passage of Merit, one can see a large door, which is the most mysterious Gate of Merit among the All Heavens.