A high-altitude expedition in the Lahaul-Spiti district of Himachal Pradesh has recovered a remarkably well-preserved birch bark scroll from a remote cave shrine. Initial carbon dating and linguistic analysis identify the text as the Vijnana-Vritti, a 9th-century commentary on the nature of empirical knowledge and perception. The scroll provides a detailed defense of the 'direct-perception' theory, arguing that the mind does not create reality but reflects it with varying degrees of clarity.
The text is particularly notable for its intersection with early scientific thought, as it contains sections discussing the refraction of light and the limits of human sensory organs as analogies for the limits of the ego. Scholars believe the Vijnana-Vritti was authored by a wandering sage who sought to synthesize the rigorous logic of the Nyaya school with the contemplative practices of the Himalayan traditions. The scroll is now being stabilized at the National Museum in Delhi.