Arcana Coelestia

The Arcana Cœlestia, quae in Scriptura Sacra seu Verbo Domini sunt, detecta, usually abbreviated as Arcana Cœlestia (Heavenly Mysteries or Secrets of Heaven) or under its Latin variant, Arcana Cælestia, is the first and largest work published by Emanuel Swedenborg in his theological period. It was written and published in Neo-Latin, in eight volumes, one volume per year, from 1749 to 1756.