A narrator who awakens among an isolated island people recounts his gradual education into a futuristic society built around refined sensory arts and speculative instruments. He learns specialized sciences and institutions such as memory valleys, earth‑seeing, the electric sense (firla), sonarchitecture, and devices for recording and translating light, smell, and cosmic music, while encountering practical technologies including anti‑grav flight and communal nutrition halls. Episodes move between hermitry, guided journeys through technical centres, and a catastrophic crisis that reveals local doctrines of heaven and hell, concluding with reflective commentary that mixes eyewitness observation and explanatory accounts of the civilisation's machines and practices.