But they all believe that all of those gods and goddesses are extensions of this one world soul. So while some people might say that Hinduism is polytheistic, it really isn't. It might not also be monotheistic. It's probably another word for it. You could put that down in the comments below. Another major formation principle is they all believe or follow the Vedas. Now there are four books of knowledge that are called the Vedas, but if we go back thousands of years, the Vedas weren't written down.