In most parts of the world, wakes and funerals are the main form of ceremonial closure people have when a loved one passes away. 

Things are a little different in Indonesia's Toraja region in Sulawesi, where Sahar Zand headed for the BBC to reveal a ritual most may find macabre: keeping dead bodies at home for months, even years. 

The families here, based partly on superstition that the departed person's spirit will haunt them otherwise, preserve the corpses of loved ones with a special chemical made of formaldehyde and methanol, then position them right in the middle of the household's activities, bringing the bodies food and water, bathing them, and even leaving the lights on all night as they keep referring to them in the present tense. This all takes place until family members have completed the mourning process in their own time and accepted that the deceased person is really dead.

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