Madhuar (Madhvacharya) - Vaishnava saint

He worshipped Uduppi Krishna and he popularized the "dvaita" philosophy. According to him, God and soul are not identical. He lived in the 13th century

Image of Satguru Sivaya Subramuniyaswami
Monists, from their mountaintop perspective, perceive a one reality in all things. Dualists, from the foothills, see God, souls and world as eternally separate. Monistic theism is the perfect reconciliation of these two views.
—Gurudeva