A rare philosophical treatise, the 'Yukti-Pratyaya-Dipika', has been identified in a private collection in the Malwa region of Madhya Pradesh. Written in the 12th century, the manuscript serves as a 'lamp' (Dipika) for understanding the logic behind perceptual certainty, tackling the complex problem of how the mind distinguishes between true insight and illusory experience.
The text is notable for its rigorous application of deductive reasoning to subjective phenomena, bridging the gap between external sensory data and internal mental conviction. Scholarly consensus suggests that this work was likely a key text for advanced students of logic in the medieval universities of Ujjain and Dhar, reflecting a high point in Indian dialectical rigor.