The Kesh also known as Kesa, or uncut, long hair, is considered by Sikhs as an indispensable part of the human body. Long known as a sign of spiritual devotion, it also emulates the appearance of Guru Gobind Singh and is one of the primary signs by which a Sikh can be clearly and quickly identified. A Sikh never cuts or trims any hair as a symbol of respect for the perfection of God's creation. The uncut long hair and the beard, in the case of men, form the main kakār for Sikhs.