This feast in honour of the Holy Eucharist falls on a Thursday in May or June and is celebrated with gusto in Łowicz. It is marked by a huge procession that circles the Stary Rynek (main square) and the cathedral. Participants dress in pasiaki (traditional brightly coloured and embroidered costumes) and carry elaborate banners and floral wreaths.
Children carry decorated pillows. Stalls are set up with a food and drink and artists sell traditional creations made from paper cutouts.