Many of the traditional clothes are startling and disturbing to anyone from the US, due to the resemblance to the racist group, the KKK. However, these hoods have a much older history and tradition than any group founded in the US. They are worn as a way to keep one's identity secret while giving penitence.
The robes come in a variety of colors, which are associated with the particular procession taking place. Some people bear crosses, some bear flags, and others just walk, barefooted.
The statues on Holy Thursday in Palencia represent the eleven phases of the crucifixion, including everything from the last supper and the washing of the disciples' feet to the crucifixion itself and the tears of the Virgin Mary.
Spanish Catholicism reveres the Virgin Mary as one of the most important biblical figures. Often art pieces and statues dedicated to her are the most gilded and elegant. In the processions of Holy Thursday, she was the climax point of the march, carried as the second to last figure, the largest carried statue in the whole batch. Fresh flowers surround the bejeweled, mourning mother. As this one passed our eyes, I listened to the crowd murmur about how beautiful she is.
Semana Santa is one of the most important celebrations in all of Spain, but brings interesting challenges for travelers. If you arrive by car, or even on foot, to a place where a procession is taking place, you may have to wait a full hour before you can pass. If you think you're going to eat out or do some shopping during these festivities, think again. Especially in smaller towns and cities, holidays mean that everything, except emergency services, closes. Most cities have mandatory closure of stores on national holidays, Sundays, and during lunch hours. Some restaurants and bars can be open, but many close voluntarily.