This is the Malagasy tradition of Famadihana, or the "Turning" of the Bones.
Approximately 50% of the country's population practice traditional religion, which tends to emphasize links between the living and the dead. The Merina in the highlands particularly tend to hold tightly to this practice. A powerful individual may establish a fady (taboo) in his or her lifetime that all their descendents or those of community members will be required to respect well after their death, meaning that when traveling in Madagascar it is advisable to seek out village elders or authorities and inquire into local fady in order not to inadvertently transgress and offend the local population. This veneration of ancestors has also led to the tradition of tomb building and the famadihana, a practice whereby a deceased family member's remains may be taken from the tomb to be periodically re-wrapped in fresh silk shrouds known as lamba before being replaced in the tomb. The event is an occasion to celebrate the loved one's memory, reunite with family and community, and enjoy a festive atmosphere. Residents of surrounding villages are often invited to attend the party, where food and rum are often served and a hiragasy troupe or other musical entertainment is typically present.
For many outsiders the practice, which involves exhuming dead relatives, rewrapping them in fresh grave clothes and dancing with them around the tomb, can seem almost impossibly strange, ghoulish even.
But for the Malagasy, for whom ancestral worship remains important, it is an essential way of maintaining ties with the dead.
Throughout winter (June to September)
The tombs of the various peoples around the island differ somewhat in form. Merina tombs tend to be solid, stone structures, built partially underground, with a chamber in which the bodies of ancestors are kept on shelves, wrapped in silk shrouds. The traditional tombs of the Mahafaly in the southwest were built of stone but surmounted by intricately carved wooden posts depicting human and animal figures. More recent Mahafaly tombs, particularly those built by rich families, are often made of concrete, with glass windows, brightly painted designs and often remarkable depictions of airplanes, taxicabs, or other modern paraphernalia mounted on the roof. At one time, it was the custom of the Sakalava people living around the Morondava River on the west coast to decorate their tombs with carvings showing explicit sexual
activity. These were meant to illustrate the life-giving force, or fertility, of the ancestors.
Among the Merina and Betsileo peoples of the central highlands, the custom of famadihana "placing" or "turning" of the dead reaffirms the link between the living and the dead. This occurs when a person is taken from a temporary to a permanent tomb in the tanindrazana, and the remains are taken out of the tomb to be wrapped in new shrouds, or when a body is moved from one tomb to another. These ceremonies are costly, mainly because of the expense of providing food for a large number of relatives and guests.