Wiccans do not use those things during rituals, and the only chanting that is done during spell-casting is that to make sure that the spell has taken. There is no satanic element involved (Wiccans as well as Pagans like myself do not believe that Satan exists), nor do Wiccans practise black magic. They are herbalists just the same as any other new-age practitioner, and just because they follow different gods (Hecate, for one) doesn't mean they are evil people to be hunted down by Christians etc because they are practising black arts. My Pagan beliefs are a mixture of Wiccan, Celtic and even eastern (like Buddhist) beliefs, and just because I don't believe in the Christian god means that they can condemn me and others to damnation. What gives them the right to judge others anyway?
Besides, the most recent day to celebrate Wiccan rituals was Aug 1, or Litha (if I remember my calendar rightly); the others being Feb 2 , March 21 (Oltara), May 1 (Beltane), June 21, Sept 21, Oct 31 (Samhain) and Dec 21, which is Yule. Sure, they are based on lunar cycles, and even if she was belatedly celebrating Litha, then the neighbours had no right to disrespect her religion by calling the cops. Seems like Christian thuggery, definitely.
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Pagans are people too, not just victims of a religious cleansing program. Universal harmony for all!!
Karma decides what must happen, and that includes everyone.