SHABAD KIRTAN or GURMAT SANGEET has been an integral part of Sikh worship from the very beginning. Hymn-singing was in fact the earliest form of devotion for the Sikhs. Even in the time of Guru Nanak, the disciples assembled together to the shabads, i.e. hymns composed by the Guru and thus to render praise to the Lord. Kirtan has since been appropriated into the regular gurdwara service. But Sikh kirtan abstains from all outward expression or frenzy in the form of clapping and dancing. Praise is offered to the Supreme Being who is without form (nirankar) and not to a deity in any embodiment or incarnation.