Buddhist religious festivals in Tibet, Bhutan, Mongolia and Lhasa and Sikkim in India perform the Cham dance, which is a popular dance form utilising masks and costumes. The wearing of costumes is an important part of holidays developed from religious festivals such as Mardi Gras (in the lead up to Easter), thor costume adult and Halloween (related to All Hallow’s Eve). A quote from the Book of Esther, which says: “On the contrary” (Hebrew: ונהפוך הוא) is the reason that wearing a costume has become customary for this holiday.