Paradiso. Paradiso is the third and final part of Dante's Divine Comedy, following the Inferno and the Purgatorio.
   It is an allegory telling of Dante's journey through Heaven, guided by Beatrice, who symbolises theology. In the poem, Paradise is depicted as a series of concentric spheres surrounding the Earth, consisting of the Moon, Mercury, Venus, the Sun, Mars, Jupiter, Saturn, the Fixed Stars, the Primum Mobile and finally, the Empyrean.
   It was written in the early 14th century. Allegorically, the poem represents the soul's ascent to God.
   The Paradiso begins at the top of Mount Purgatory, called the Earthly Paradise, at noon on Wednesday, March 30, 1300, following Easter Sunday. Dante's journey through Paradise takes approximately twenty-four hours, which indicates that the entire journey of the Divine Comedy has taken one week, Thursday evening to Thursday evening.
   After ascending through the sphere of fire believed to exist in the earth's upper atmosphere, Beatrice guides Dante through the nine celestial spheres of Heaven, to the Empyrean, which is the abode of God. The nine spheres are concentric, as in the standard medieval geocentric model of cosmology, which was derived from Ptolemy. The Empyrean is non-material. As with his Purgatory, the structure of Dante's Heaven is therefore of the form 9+1=10, with one of the ten regions different in nature from the other nine. During the
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