The Sikhs believe that all the ten Gurus have the same spirit. This is one of the fundamental beliefs of the Sikhs. Guru Gobind Singh had recorded in one of his hymns that though after Nanak came Angad and then Amardas and then Ramdas, Arjan, Hargobind, Harrai, Harkrishen and Tegh Bahadur, but they all had the same spirit. They looked different for they had different bodies but their spirit, the inner self, was the same. That spirit today lies within the everlasting Sikh Guru, The Guru Granth Sahib Ji.