Ninth Heaven, also known as Celestial Court, Immortal Realm, and Divine Arena in ancient times, was home to many Gods and Immortal Beings. It was full of untainted Vital Qi called "Ethereal Air" and had outstanding Dharma and Logos that almost seemed solid. It was easy for one to feel, grasp and understand them but brought little pressure on the physical body and the Vital Spirit, making it a top-tier place to train and cultivate. Some had even proclaimed that a breath of "Ethereal Air" can make one ten years younger!
It was because of this that many Immortals chose to maintain abodes in Ninth Heaven. Thus, even if they did not work in the Celestial Court, they were still under its control. The Plain Lady's Paradise was a part of the mysteriously disappeared Ninth Heaven.
Meng Qi could only see clouds covering the blue sky. However, these clouds did not seem to obstruct sunshine but made it brighter instead.
