Kabir (1398–1518) was a well-known Indian mystic poet and saint. His writings influenced Hinduism's Bhakti movement, and his verses are found in Sikhism's scripture Guru Granth Sahib, the Satguru Granth Sahib of Saint Garib Das,and Kabir Sagar of Dharamdas.
Born in the city of Varanasi in what is now Uttar Pradesh, he is known for being critical of both organized religion and religions. He questioned what he regarded to be the meaningless and unethical practices of all religions, primarily what he considered to be the wrong practices in the Hindu and Muslim religions.During his lifetime, he was threatened by both Hindus and Muslims for his views. When he died, several Hindus and the Muslims he had inspired claimed him as theirs.
He is revered by Hindus, Muslims and Sikhs. He played the role of a teacher and social reformer by the medium of his writings. Like other Devotees, Kabir did not believe in Ritualism, the worshiping of Dieties, Brahmanism, Caste System and illusioned concepts of Hindu and Muslim priests.