In speaking of how men and women of the early Christian era saw their bodies, historian Peter Brown says the body was embedded in a cosmic matrix in ways that made its perception of itself profoundly unlike our own. Ultimately, sex was not the expression of inner needs, lodged in the isolated body. Instead, it was seen as the pulsing, through the body, of the same energies as kept the stars alive. Whether this pulse of energy came from benevolent gods or from malevolent demons (as many radical Christians believed) sex could never be seen as a thing for the isolated human body alone.