The most detailed traditional account of Madhva's life, generally known as the Madhva Vijaya, was composed by Narayana Panditacharya, a disciple of one of Madhva's own direct disciples, meaning it was written within the tradition's own lineage specifically to celebrate its founder rather than as an outside or neutral record. It describes miraculous feats and long journeys, including travel across the subcontinent and a legendary meeting with the sage Vyasa, episodes that scholars generally read as devotional literature illustrating Madhva's stature within his tradition rather than as verifiable historical reportage. This does not mean nothing reliable can be said about him: his core philosophical project, a strict theistic dualism, or Dvaita Vedanta, developed specifically in opposition to the non-dual Advaita reading of the Upanishads associated with Shankara, is well documented through his own extensive philosophical writings, which survive independently of the more legendary biographical material and give a much firmer basis for understanding his actual thought.
The gap between a philosophically rigorous body of argument that can be read and assessed directly, and a devotional biography written generations later by a committed follower describing miracles, is typical of how South Asian religious founders are remembered, with the philosophical legacy generally resting on firmer textual ground than the narrative details of the life.