The Prie Dieu is home
Every Prie Dieu is a full reset: heal to full, refill Bile Flasks, save your progress, and set your respawn point. Treat each one as a checkpoint you should always take — and note that resting respawns every enemy in the zone, so clear what you can first.
Spend and purge
At a Prie Dieu you spend Tears of Atonement on Mea Culpa upgrades and abilities, swap your Mea Culpa Heart, and purge Guilt. A clean slate beats a heavy wallet: spend before you carry Tears into danger.
Guilt management
When you die, your Tears become a Guilt Fragment where you fell. Carried Guilt shortens your Fervour bar, slows how fast it fills, and cuts the Tears you earn — so recover the fragment or purge it. A Confessor Statue removes all Guilt for a small fee if fragments pile up across the map.
Rebuild here
Swap relics and hearts to answer the next area. The enemy database and boss database tell you what is coming — the Prie Dieu is where you prepare for it. The 22 bosses range from the Warden of the Silent Sorrow (400 HP) to Sierpes (10,000 HP), so tune your kit between each.