An Indian Nihang, a religious Sikh warrior, holds a flammable cube on his tongue during a religious

An Indian Nihang, a religious Sikh warrior, holds a flammable cube on his tongue during a religious procession to mark the 413rd anniversary of the installation of the Guru Granth Sahib at the Golden Temple in Amritsar on August 22, 2017.
NARINDER NANU / AFP