Prasad writes that the Vedas are the oldest written source of theology and, ultimately, the source of all other theological systems. He takes major religious themes--such as good and evil, the afterlife, resurrection and the name used for god in the religions of Judaism, Christianity, Buddhism and others--and traces them back to the Vedas.
The Fountainhead of Religion: A Comparative Study of the Principle Religions of the World and a Manifestation of Their Common Origin from the Vedas
