Madhvacharya (C. 1238–1317) propagated the Bhakti Marg or the path of devotion for the realisation of God. He felt that there was no need to deny the world in order to realise the Divine. Relying on logic, and quoting profusely from the scriptures, he made a strong case for theism. His school of thought is known as dvaita which stands for two realities – independent and dependent. The infinitely perfect God is independent and the world of matter and spirits is dependent on God. He advocated total surrender to God to achieve salvation.