The concept eventually reached the highest levels of Church authority, though it remained a point of major conflict.

In the 16th century, Martin Luther and John Calvin rejected Purgatory as an "unbiblical invention" used to exploit the poor through the sale of indulgences.

The rise of the middle class and urban life influenced this. Just as there was a social middle between the rich and poor, theology created a middle between the saint and the damned.

Are you interested in the between Catholics and Protestants?

Early thinkers like St. Augustine (5th century) distinguished between eternal fire and a "purifying fire" for those with minor sins. Pope Gregory the Great (6th century) further linked this fire to the forgiveness of "lesser faults" after death.

A cave in Ireland became a major pilgrimage site, with legends claiming it was a direct physical entrance to the purgatorial realm.

This period saw the rise of indulgences and "masses for the dead," where the living could offer money or prayers to shorten a loved one's time in the "cleansing fire." ⚖️ Formal Dogma and Dissent