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Initiation and the Khalsa

Khalsa (meaning "pure and sovereign") is the collective name given by Guru Gobind Singh, to those Sikhs who have been fully initiated by taking part in a ceremony called ammrit sañcār (nectar ceremony). During this ceremony, sweetened water is stirred with a double-edged sword while liturgical prayers are sung; it is offered to the initiating Sikh, who ritually drinks it. Many Sikhs are not formally and fully initiated, as they do not undergo this ceremony, but do adhere to some components of Sikhism and identify as Sikhs. The initiated Sikh, who is believed to be reborn, is referred to as Amritdhari or Khalsa Sikh, while those who are not initiated or baptised are referred to as Kesdhari or Sahajdhari Sikhs.

The first time that this ceremony took place was on Vaisakhi, which fell on 30 March 1699 at Anandpur Sahib in Punjab. It was on that occasion that Gobind Singh baptised the Pañj Piārē – the five beloved ones, who in turn baptised Guru Gobind Singh himself. To males who initiated, the last name Singh, meaning "lion", was given, while the last name Kaur, meaning "princess", was given to baptised Sikh females.

Baptised Sikhs wear five items, called the five Ks (in Punjabi known as pañj kakkē or pañj kakār), at all times. The five items are: kēs (uncut hair), kaṅghā (small wooden comb), kaṛā (circular steel or iron bracelet), kirpān (sword/dagger), and kacchera (special undergarment). The five Ks have both practical and symbolic purposes.