A normal Major tribulation to the Celestial Immortal realm followed the same pattern as the one for the Heaven Immortal realm. There was the Lightning tribulation, the Fire tribulation and the Spirit.
Over the years, many researchers theorized that this form of tribulations was actually incomplete based on a simple trend. Generally speaking, as the cultivation levels rose higher, the corresponding difficulty and complexity of anything related to them also rose.
This was a simple law of nature.
For example, mining simple moral gold was pretty easy, but once certain types of golds corresponded to the value of certain Immortal realms, harvesting and purifying them became much harder. Harvesting a simple piece of cabbage was pretty simple, but picking up a Celestial Flight Cabbage was not just a matter of reaching down and picking up.
