Rehat refers to the rules and traditions which govern the unique Sikh lifestyle and determines correct Sikh orthodoxy and orthopraxy. The Sikh Rehit Maryada is a code of conduct and conventions for Sikhism. The final version of the Rehat Maryada was controversially approved by the Shiromani Gurdwara Parbandhak Committee, Amritsar in 1945. The Rehat Maryada was created to provide guidance to Sikhs on practical and functional aspects of daily life, including the operations of Sikh Gurdwaras, and religious practices to foster cohesion throughout the community. Rehitnāma is a Punjabi term that refers to a genre of Sikh religious literature which expounds upon specifiying an approved way of life for a Sikh.

Khalsa refers to both a community that considers Sikhism as its faith, as well as a special group of initiated Sikhs. The Khalsa tradition was initiated in 1699 by the Tenth Guru of Sikhism, Guru Gobind Singh. Its formation was a key event in the history of Sikhism. The founding of Khalsa is celebrated by Sikhs during the festival of Vaisakhi.