The religious reaction to the Black Death is very much within the framework of what already existed, but obviously with new valences – there is a lot more writing about death. There are a lot more handbooks about how to prepare for a good death. This becomes a trend that continues for the next centuries. Some art historians have identified new types of depiction of the passing of life: the weakness of the body, describing the body in very graphic ways as something that is passing, that is rotting, in order to remind people that what really matters is life after death.
But Christianity was already invested in and provided for a constant conversation between the living and the dead. There were just so many new dead to pray for. Some confraternities, some religious societies in Cambridge had so many dead brothers and sisters to commemorate after the Black Death that they decided to innovate, to create a Corpus Christi college in order to be sure that they may die and all members of society might die, but the college will continue as an institution and continue to provide that commemorative prayer that all Christians want – prayer while they're in purgatory.
So, what was already provided in the Christian system was used in new ways, with new types of imagining of the need to commemorate so many more people who died and often died without confession, without doing penance – that is, in a state of sin. That was obviously worrying for people about their loved ones who had perished.