The Vedas and Upanishads for Children About the Author ROOPA PAI is the author of several books for children, including the much-acclaimed, award-winning bestseller The Gita for Children. Her books, on topics as diverse as history, mathematics, science, economics and sci-fi fantasy, are enjoyed by adults just as much as they are by children.Of all the Mahavakyas in the Upanishads, her favourite is 'Prajnanam Brahma - Knowledge is God'.