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.