Dante’s nine spheres of Heaven are the Moon, Mercury, Venus, the Sun, Mars, Jupiter, Saturn, the Fixed Stars, and the Primum Mobile. These are associated by Dante with the nine levels of the angelic hierarchy. Dante also relies on traditional associations, such as the one between Venus and romantic love.
In Dante’s paradise, the nine circles of heaven are an allegory for the angelic hierarchy using the planets of our solar system as names including, in order, “the Moon, Mercury, Venus, the Sun, Mars, Jupiter, Saturn, the Fixed Stars, and the Primum Mobile.”
Dante’s vision of God is a flash of insight that cannot be put into words. But there is something the poet can tell us. He can report that he reached his longed for end, and that the fruit of his vision was a desire and will that were conformed to the graceful movements of Love.
Dante passes through the gate of Hell, which bears an inscription ending with the famous phrase „Lasciate ogne speranza, voi ch’intrate„, most frequently translated as „Abandon all hope, ye who enter here.” Dante and his guide hear the anguished screams of the Uncommitted.
In astronomy and navigation, the celestial sphere is an abstract sphere that has an arbitrarily large radius and is concentric to Earth. All objects in the sky can be conceived as being projected upon the inner surface of the celestial sphere, which may be centered on Earth or the observer.