How did visions and stories of people returning from the dead strengthen medieval belief in purgatory?

In medieval Roman Catholicism, visionary literature and stories of people returning from the dead played a crucial role in reinforcing the belief in purgatory. These accounts, shared by influential figures such as Gregory I and Bede, provided vivid, imaginative evidence that the deceased could undergo a state of purgation after death.1

By depicting the afterlife as a place where souls could be purified, these narratives validated the theological belief that even forgiven sins required satisfaction that might not be completed during one's earthly life. Consequently, these stories strengthened the bond between the living and the dead by demonstrating that the deceased could benefit from the intercessory prayers, masses, and penitential practices performed by the living. This framework encouraged a complex system of indulgences and suffrages, as the faithful sought to lessen the severity of the suffering experienced by souls in the interim state. Over time, these imaginative journeys helped transition the concept of purgatory from an abstract idea into a more concrete, geographically situated place in the medieval Christian worldview.12