Elemental correspondences, directional correspondences, and colors may vary between traditions. It is common in the southern hemisphere, for instance, to associate the element fire with north (the direction of the equator) and earth with south (the direction of the nearest polar area.) Some Wiccan groups also modify the religious calendar to reflect local seasonal changes; for instance, in Australia Samhain might be celebrated on April 30th, and Beltane on October 31st to reflect the southern hemisphere's autumn and spring seasons.
Wiccan morality is ruled according to the Wiccan Rede, which (in part) states "An it harm none, do what thou wilt." ("An" is an archaic word meaning "if".) Others follow the slightly adapted Rede of "An it harm none, do what ye will; if harm it does, do what ye must." Either way, the Rede is central to the understanding that personal responsibility, rather than a religious authority, is where moral structure resides.
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