kys
the cross symbol in their mysteries is indeed a union of the generative force (phallus) and the womb, the creation of Horus (the "enlightened man", lucifer etc).
Thor's hammer btw is yet another phallic symbol, it looks like an upside down cross (st peter's cross), and the upside down cross is the phallus of osiris. The symbol of "venus", which today symbolizes "women", is the union of the phallus and the womb, giving birth to Horus. Read about the osirian cycle.