As a masculine principle, the black-handled athame is often used in combination with the chalice, as feminine principle, evoking the act of procreation, as a symbol of universal creativity. The athame represents the magical element of fire, associated with the Sun and the Horned God; while the chalice represents the magical element of water, associated with the Moon and the Goddess. The union of the two then represents the union of God and Goddess, male and female, sun and moon, fire and water. The marriage of the Sun and Moon—the union of opposites—is an ancient idea in alchemy; and the "hieros gamos" or sacred marriage of god and goddess is an even more ancient idea in pagan religions. (For example, in ancient Greece—from whence the term "hieros gamos" comes.) This rite is done by dipping the athame into the chalice to bless the wine. This is a symbol of the Great Rite in Wiccan rituals. Some modern witchcraft traditions may prefer not to use iron blades, instead preferring alternatives such as copper, bronze or stone, such as obsidian. This is most common amongst traditions that have a particular fondness of the Sidhe, to whom iron is supposedly baneful.