A comparative, critical analysis of the key writings on religion by Sigmund Freud and Carl Jung. Particular attention will focus on the unconscious and its role in the transgenerational transmission of trauma, especially through myths and religions. Freud’s theory of dreams are compared with Jung’s ideas of universal symbols and archetypes, including the personal and collective unconscious. Jung's theory of synchronicity will be discussed alongside Freud's theory of telepathy or thought-transference, including their implications for different understandings of the unconscious and archaic inheritance expressed and manifested in religions and religious experience.