Corpus Christi, also known as Boże Ciało in Poland, is a significant celebration in the Catholic Church's liturgical calendar. This event takes place on the Thursday after Trinity Sunday, typically falling in late May or early June. It honors the Eucharist, a sacrament also known as Holy Communion, which represents the body and blood of Christ. This event is recognized as a public holiday in Poland, leading to many businesses and schools closing for the day.

The celebration of Corpus Christi in Poland is accompanied by grand and colorful processions. The processions are often led by children, local fraternities, girls dressed in white, and men carrying religious banners. Folk bands play festive music, and the path of the procession is often adorned with flower petals. The march culminates in the Holy Mass, during which priests and church attendees honor the body and blood of Christ.

In addition to the processions and masses, many Poles also celebrate Corpus Christi with family gatherings and feasts. The holiday, while deeply religious, also possesses a strong cultural component, fostering community ties and continuing long-standing traditions. Even though Corpus Christi is a Catholic holiday, it is highly respected by the non-Catholic citizens of Poland due to its historical and cultural significance. Overall, Corpus Christi offers a beautiful blend of faith and tradition, making it a cherished holiday in Poland.