Explain Jnaneshwar's role in spreading the Bhakti movement in Maharashtra.

Jnaneshwar, at the age of 15, is said to have delivered nine thousand verses of his commentaries on the Bhagvad Gita, called the Jnaneswari, also called Bhavartha Dipika. He regarded Bhakti as the means to liberation. On the advices of his brother and Guru, Nivrittinatha to write a treatise on his spiritual experience, he wrote Amritanubhava. His teachings invoked great devotion in common people and his followers walk hundreds of kilometers to the holy place of Pandharpur, to worship Lord Vittala, a form of Hari.