The focal point of Sikh religious practice is shabad kirtan, that is, the devotional singing of the praises of the Formless One. Since the time of Guru Arjan, the fifth Guru of the Sikhs, shabad kirtan has been performed continuously during the day at the holiest Sikh shrine, the Harimandar Sahib at Amritsar

When performed according to the correct raga or measure of classical Indian music, shabad kirtan provides one of the most unique and inspiring forms of religious experience.