Spring cleaning (wiosenne porządki) is associated with the beginning of Lent. On Ash Wednesday believers have their heads marked with ash at a church service; on Palm Sunday they prepare special palms to take to church for a blessing. The blessed palms are kept in the house for the year. Tradition says they protect the household from evil. The following year they are collected and burnt outside the church to provide the ash for Ash Wednesday. On Holy Saturday every household prepares an Easter basket (święconka) full of Easter breakfast foods. The baskets are taken to the church to be blessed, and the contents eaten the following morning. Easter breakfast is the most celebrated Easter meal in Polish culture, dating back to the 7th century. Before the breakfast begins, families share Easter eggs with each other, wishing their relatives all the best.