"Well, now, I'll offer that up and I'll have no end of Indulgences to get me into heaven."
Question to the Mintmaker showing Sale of Indulgences Jorg Breu the Elder c1530
is defined as "the remission before God of the temporal punishment due for sins already forgiven as far as their guilt is concerned." Indulgences may be partial or plenary. A partial indulgence removes part of the punishment, a plenary indulgence removes all of it. The punishment may be in this life, or in the next life, in purgatory.
Indulgences were sold by the Church until 1567. They fell out of favour in the 1960s, but have recently been reinstated.