I know but...

I know that witches have no powers as witches on TV, I tried just a clarification ... thanks for reply.
In a book of Silver Ravenwolf, there are rules to follow to activate your own magickal power, this confuses me, because if the witches do not have the powers that people generally believe, what are the rituals described in his book to activate these supposed powers?? In magick, I have some experience, but this popular belief related to the "magickal powers", I've never been very clear ...