Master Yan said to the several visitors, "This dream world is divided into many levels, and normal adventurers can only access the shallowest layer. Indulging here can lead to corruption, and then one's level of reason decreases, so one can see into deeper layers of the dreamscape. Once completely devoid of reason and turned into a madman or monster, one can see the deepest layer of the dream. This world has multiple disguises, and to strip them away, one must immerse deeper."
"If I were also to sacrifice some of my blood in that place, what dangers might I encounter?"
"Afterward, you would no longer be able to sleep normally. Every time you dream, you will return to this dreamscape. Normal adventurers can only enter through a specific ritual, and when they do not wish to adventure, they can avoid performing this ritual and have normal sleep and good rest."
"That indeed sounds like a taboo. Why would the teacher do such a thing?"