On Maundy Thursday, it is customary in Bulgaria to dye Easter eggs , starting with the most important one—the first egg must always be painted red. This egg is used to make the sign of the cross on the foreheads of children and other family members as a blessing for health and happiness. It is then set aside from the rest and placed in a safe, visible spot such as a display case, where it remains until the following Easter , replaced by the new one. This red egg is believed to bring luck and