The Surangama Sutra: The Demonic States of the Form and Feeling Skandhas, Part 3 of 9, Dec. 26, 2018

When the person’s mind becomes clear, unveiled, bright and penetrating, an internal Light will shine forth and turn everything in the ten directions into the color of Jamburiver gold. All the various species of beings will be transformed into Tathagatas. He will see Vairochana Buddha seated upon a platform of celestial Light, surrounded by a thousand Buddhas. Further, the person uses his mind to investigate this clear discernment until the pure light no longer disperse. He will suddenly be able to see various things appear in a dark room at night, just as if it were daytime. This is a temporary state and does not indicate sagehood. If he considers himself a sage, then he will be under demonic influence.