 The Sikh Gurus endorsed the view of Hindu Bhakti movement saints such as Namdev (≈1270 – 1350 CE) that formless eternal god is within human heart and man is his own savior.The Linga Puranam declares that Ganesha incarnates to destroy demons and to help the gods and pious people.The two upapuranas – Ganesha Purana and Mudgala Puranam – detail the avatars of Ganesha.