Indian monotheistic religion founded in the late 15th century by Guru Nanak .
Most of its 18 million members, called Sikhs, live in the Punjab , the site of their holiest shrine, the Golden Temple , and the centre of Sikh authority, the Akal Takht . The Adi Granth is the canonical scripture of Sikhism. Its theology is based on a supreme God who governs with justice and grace. Human beings, irrespective of caste and gender distinctions, have the opportunity to become one with God. The basic human flaw of self-centredness can be overcome through proper reverence for God, commitment to hard work, service to humanity, and sharing the fruits of one's labour. Sikhs consider themselves disciples of the 10 Gurus. They accept the Hindu ideas of samsara and karma , and they view themselves as the Khalsa, a chosen race of soldier-saints committed to a Spartan code of conduct and a crusade for righteousness. The emblems of the Khalsa, called the five K's, are kes (uncut hair), kangha (a comb), kachha (long shorts), kirpan (a sword), and karka (a steel bracelet).