In more primitive forms of religion the correspondence of the heavenly family to the earthly family and the projection on to the former of the feelings and tendencies aroused in connection with the latter (and particularly those which enter into the Œdipus complex) can as a rule be even more clearly and unmistakably observed. Thus in primitive cosmogonies[185] there are usually two world parents whose relations to each other are disturbed by their children, the son as a rule becoming hostile to the father, deposing him from his position of authority, killing or unmanning him or separating him from the mother. Of these world parents the father is very frequently regarded as a personification of the heavens, while the mother is identified with the Earth[186]; Heaven and Earth being sometimes considered as having been separated by their children from the close embrace in which they had previously been lying (as in the case of Atlas, who in this way keeps Heaven apart from Earth--a story which has many parallels, especially in Polynesian Mythology). In the Greek version Ouranos and Gaia (of whom the latter seems to have been the mother of the former, their union being thus incestuous) are separated by their son Cronos, who, at the instigation of his mother, deposes and castrates his father and marries his sisters Cybele, the mother of the gods. In the next generation these barbarous relations between parents and children are repeated. Cronos, fearing that he in his turn will become a victim to the same treatment as that which he himself had accorded to his father, endeavours to escape the threatened danger by eating his children as soon as they are born. Zeus however, being saved by a stratagem of his mother, performs the very act which his father had sought to prevent, and himself becomes firmly seated on the throne of Heaven and is married to his sister Hera. [Sidenote: Indications of mental conflict and repression] [Sidenote: Rebellion and punishment]