Feasting on the Incense of the Human World, Only to Find This Is the Underworld

A Taoist furnace with three incense sticks. I bear the incense of all sentient beings, go through the tribulations in the human world, go from hell to the fairy world, and survive the tribulations in the human world. … Is there a possibility that we are poor because no one burns paper? They say that hell is empty and the devil is in the world. Is there a possibility that our place is... The underworld, the endless underworld? That day, I heard the mumblings of burning incense and paper, and I finally saw the true face of the world. (Double penetration, mainly cultivating immortals from other worlds)