If a cultivator at the Peak of Refining Void Stage hibernates after their fifth Great Heavenly Tribulation, sealing away all their vitalities and connections to the Heavenly Dao, they will have a total of three thousand years of activity.
It will be three thousand years before their sixth Great Heavenly Tribulation comes.
This seal should also seal the growth of their lifespan; otherwise, their lifespan would still be increasing while they hibernate, and wouldn't they be struck by lightning when they come out?
This difficulty further increases the challenge of Refining Void cultivators wanting to avoid the Great Heavenly Tribulation, as very few can seal their own lifespan growth.
No wonder only the Holy Land can do this.
Even if a First-grade Immortal Sect could do it, they wouldn't be able to do it on a large scale. Most likely, they would have to spend a fortune obtaining a limited amount of materials capable of sealing Refining Void cultivators from the Holy Land.