The triad appears in Maitrayaniya Upanishad, for the first time in recognized roles known ever since, where they are deployed to present the concept of three Guṇa - the innate nature, tendencies and inner forces found within every being and everything, whose balance transform and keeps changing the individual and the world. It is in the medieval Puranic texts, Trimurti concepts appears in various context, from rituals to spiritual concepts. The Bhagavad Gita, in verses 9.18, 10.21-23 and 11.15, asserts that the triad or trinity is manifestation of one Brahman, which Krishna affirms himself to be. However, suggests Bailey, the mythology of triad is not the influence nor the most important one in Hindu traditions, rather the ideologies and spiritual concepts develop on their own foundations. The triad, with Brahma creating, Vishnu preserving and Shiva destroying, balances the functioning of the whole universe.