Emmanuel Swedenborg's most famous work is a description of the many heavens and hells that make up the great 18th-century thinker's cosmology, at once perfectly logical and perfectly eccentric. Swedenborg's afterworld is a kind of reflection and amplification of our own, and his vision of moving and active collective of heavens, occupied by the very real blessed dead, has been a tremendous influence on Goethe, Emerson, and Jorge Luis Borges, among many others.