In everyday life we may be very timid, in which case sadism in a dream is an escape mechanism. If we have to be dominant and controlling in everyday life, the unconscious shows its need to be controlled by such dreams. Semen the sign of masculinity and of physical maturity, semen is often seen in dreams as some other milky fluid. Dreams have an odd way of manifesting images of primitive rites and practices of which we may have no conscious knowledge, such as depositing semen in the earth.