Ghosts are generally believed to be active only at night time, especially during a full moon. One way to evade such a ghost is for all the victims to formally change their name, so that when the ghost returns it will not recognise them. Another method is to tempt the ghost with a meal. When the ghost turns into an animal such as a chicken so that it can eat, it may be killed and destroyed. Ghosts traditionally were blamed for some illnesses. To cure them, the shaman (dukun or bomoh) in a village would burn incense, recite incantations, and in some cases sacrifice an animal and wash its blood into a river to appease the ghost. Healing dances may also be performed, such as the mak yong, "saba", "main puteri", or the Ulek Mayang.