The Dream of Scipio (Latin, Somnium Scipionis), written by Cicero, is the sixth book of De re publica, and describes a fictional dream vision of the Roman general Scipio Aemilianus, set two years before he commanded at the destruction of Carthage in 146 BC.
Upon his arrival in Africa, Scipio Aemilianus is visited by his dead grandfather (by adoption), Scipio Africanus, hero of the Second Punic War. He finds himself looking down upon Carthage "from a high place full of stars, shining and splendid". His future is foretold by his grandfather, and great stress is placed upon the loyal duty of the Roman soldier, who will as a reward after death "inhabit... that circle that shines forth among the stars which you have learned from the Greeks to call the Milky Way". Nevertheless, Scipio Aemilianus sees that Rome is an insignificant part of the earth, which is itself dwarfed by the stars. The planetary spheres are enumerated with references to Pythagorean thought and the idea of the Music of the Spheres. Then the climatic belts of the earth are observed, from the snow fields to the deserts, and there is discussion of the nature of the Divine, the soul and virtue, from the Stoic point of view.
Relation to other Works 
The tale is modelled on "The Myth of Er" in Plato's Republic. Although the story of Er records a near-death experience, while the journey of Scipio's "disembodied soul" takes place in a dream, both give examples of belief in astral projection.
Macrobius' Commentary upon Scipio's Dream was known to the sixth-century philosopher Boethius, and was later valued throughout the Middle Ages as a primer of cosmology. The work assumed the astrological cosmos formulated by Claudius Ptolemy. Chretien de Troyes referred to Macrobius' work in his first Arthurian romance, Erec, and it was a model for Dante's account of heaven and hell. Chaucer referred to the work in "The Nun's Priest's Tale" and especially in the Parlement of Foules.
Bernard Field, in the preface to his History of Science Fiction, cited Scipio's vision of the Earth as seen from a great height as a forerunner of modern science fiction writers describing the experience of flying in orbit — particularly noting the similarity between Scipio's realization that Rome is but a small part of the Earth with similar feeling by characters in Arthur C. Clarke's works.
This story is the basis for Chris McCully's poem "Scipio's Dream" from his collection Not Only I, published in 1996.
Images from a 12th century manuscript of Macrobius' Commentarii in Somnium Scipionis (Parchment, 50 ff.; 23.9 × 14 cm; Southern France). Date: ca. 1150. Source: Copenhagen, Det Kongelige Bibliotek, ms. NKS 218 4°.
The five climes of the Earth. Frozen climes in yellow; Temperate climes in blue; Torrid clime in red.
- Patrick V. Reid, Readings in Western Religious Thought: The Ancient World, Paulist Press 1987, page 175
- Julian Palley, Bécquer's "Disembodied Soul", University of Pennsylvania Press 1979