Holy Saturday is the final day of Holy Week, the final day of the traditional 40 day Lenten Fast, and a part of the Triduum. It commemorates Jesus lying in the tomb until his resurrection on Easter Sunday.

This day in Poland people bring baskets of their Easter fare to church for a special blessing for all the different Easter foods.
Swieconka, meaning "the blessing of the Easter baskets," is one of the most enduring and beloved Polish traditions on Holy Saturday and dates back to the 14th century.
The basket is traditionally lined with a white linen or lace napkin and should contain at least seven kinds of food, each with its own symbolism.
A Paschal Lamb, representing the Lamb of God, in Polish: baranek, can be made from cake, bread, sugar or butter and is often centerpiece of the food brought to the church. It symbolises the Passover offering of the Saviour.
Bread, ensuring good fortune is also a symbol of communion, the bread of the last supper. Cake symbolises skills and perfection.
Eggs, both decorated and plain, stand for re-birth, life's victory over death. Salt is a life-giving mineral, once believed to keep away all evil.
Smoked meat, usually ham or sausage (kielbasa), ensures health, fertility and abundance. Horseradish is a symbol of strength and physical fitness, bitter herbs signify the bitterness of the suffering of Christ.
Greenery, usually in the form of boxwood or branches of pussy willow represents the awakening of the earth.

The three-part blessing prayers specifically address the various contents of the baskets, with special prayers for the meats, eggs, cakes and breads. The priest then sprinkles the individual baskets with holy water.