Now this is from the Purusha Sukta, and Purusha in the Vedas, you can view as this cosmic being, but they anthropomorphize this being, making it seem or making it an analogy with a human body. When they divided the cosmic being, how many portions did they make? What do they call his mouth, his arms? What do they call his thighs and feet? The Brahman was his mouth. Of both arms was the Rajanya made, the Rajanya you could view as the Kshatriyas, the warriors and the kings. His thighs became the Vaishya.