The Mul Mantar (, , pronounced Mool Mantar) is the first composition in the Sikh holy book, the Adi Granth. It is a series of affirmations and is the basis of Sikh theology. The Mul Mantar is the first composition of Guru Nanak and the origin of the Adi Granth. The Adi Granth begins with the Mul Mantar and it occurs more than one hundred times throughout the text.