What is "pratibimbavada"

Pratibimbavada (Sanskrit: प्रतिबिम्बवाद) or the theory of reflection, whose origin can be traced to the Brahma Sutra II.iii.50, is credited to Padmapada, the founder of the Vivarna School of Advaita Vedanta and the author of Pancapadika which is a commentary on Sankara’s Brahma Sutra Bhasya. According to the ''Vivarna School, Brahman is the locus of Avidya , and which, with regard to the relation existing between the Jiva and Brahman, concludes that the Jiva is a mere reflection (pratibimba) of its prototype (bimba) i.e. of Brahman, and therefore, identical with its essence, Brahman. This school holds the view that the mahavakya, tat tvam asi, is sufficient for the attainment of enlightenment, of the realization of the identity between the self and Reality.