This study examines origins of Christian creeds in pagan rites, surveying solar myths, zodiac symbolism, totemic sacraments, food and vegetation magic, the roles of magicians, kings and gods, rites of expiation and redemption, pagan initiations and second birth, the savior-god and virgin-mother motif, ritual dancing and sex taboos, and the genesis and diffusion of Christianity; it considers ancient mysteries and concludes that religious rites and doctrines are symbolic expressions of a central universal life. The author compares competing theories—solar, phallic, euhemerist, and magical—advocating a broad comparative approach that synthesizes diverse facts without overreliance on any single explanation.