life. The same word in adjectival form (purgatorius -a -um, cleansing), which appears also in non-religious writing, was already used by Christians such as Augustine of Hippo and Pope Gregory I to refer to an after-death cleansing. During the Age of Enlightenment, theologians and philosophers presented various philosophies and beliefs. A notable example is Emanuel Swedenborg who wrote some 18 theological works which describe in detail the nature of the afterlife according to his claimed spiritual experiences, the most famous of which is Heaven and Hell. His report of life there covers a wide range of topics, such as marriage in heaven (where all angels are married), children in heaven (where they are raised by angel parents), time and space in heaven (there are none), the after-death awakening process in the World of Spirits (a place halfway between Heaven and Hell and where people first wake up after death), the allowance of a free will choice between Heaven or Hell (as opposed to being sent to either one by God), the eternity of Hell (one could leave but would never want to), and that all angels or devils were once people on earth. The Catholic Church The Catholic conception of the afterlife teaches that after the body dies, the soul is judged, the righteous and free of sin enter Heaven. However, those who die in unrepented mortal sin go to hell. In the 1990s, the Catechism of the Catholic Church defined hell not as punishment imposed on the sinner but rather as the sinner's self-exclusion from God. Unlike other Christian groups, the Catholic Church teaches that those who die in a state of grace, but still carry venial sin, go to a place called Purgatory where they undergo purification to enter Heaven. Limbo Despite popular opinion, Limbo, which was elaborated upon by theologians beginning in the Middle Ages, was never recognized as a dogma of the Catholic Church, yet, at times, it has been a very popular theological theory within the Church. Limbo is a theory that unbaptized but innocent souls, such as those of infants, virtuous individuals who lived before Jesus Christ was born on earth, or those that die before baptism exist in neither Heaven nor Hell proper. Therefore, these souls neither merit the beatific vision, nor are subjected to any punishment, because they are not guilty of any personal sin although they have not received baptism, so