"The Puranas are of the same class as the Itihasas (the Ramayana, Mahabharata, etc.). They have five characteristics (Pancha Lakshana), viz., history, cosmology (with various symbolical illustrations of philosophical principles), secondary creation, genealogy of kings, and of Manvantaras (the period of Manu’s rule consisting of 71 celestial Yugas or 308,448,000 years). All the Puranas belong to the class of Suhrit-Sammitas, or the Friendly Treatises, while the Vedas are called the Prabhu-Sammitas or the Commanding Treatises with great authority."