— It opens doors.
— What kind of doors?
— Doors to the pleasures of heaven or hell. I didn't care which. I thought I'd gone to the limits. I hadn't. The Cenobites gave me an experience beyond limits. Pain and pleasure... indivisible.
Believe me, no civilised man ever regrets a pleasure, and no uncivilised man ever knows what a pleasure is.
The concept of identical environment construction allows each of us to head confidently into each moment with all the secure knowledge it has been lived before.