The so-called Human Tribulation refers to a man-made catastrophe.
The occurrence of such a catastrophe does not have a fixed explanation.
But, it mostly has to do with some karma you've accumulated in the past.
Take True Monarch Yanfa this time for example.
They occupied this dojo of the White Bone Demon Sect.
Exterminated the entire White Bone Demon Sect.
Although it is said that the White Bone Demon Sect is a typical Demon Dao sect, having committed countless atrocities and massacred innocent lives innumerably.
However, this Demon Sect, in essence, is a subsidiary force of the Ten Thousand Demons Demon Sect.
By destroying it and occupying this dojo of its mountain gate.
From a certain perspective, it's also forming some karmic ties with the Ten Thousand Demons Demon Sect.
Moreover, the Ten Thousand Demons Demon Sect has long coveted the area of the White Bone Demon Sect.
