Paganism, Wicca, and Witchcraft all mean slightly different things, just like Lutheran and Methodist and Baptist refer to different forms of Christianity. But just as these churches are all a part of Christianity, so are Paganism, Wicca, and Witchcraft all part of a worldwide movement of spirituality and religion that is based in reverence for nature. That's why it's called "Nature Spirituality." This movement believes that Mother Nature, or Mother Earth, is actually as much a part of God as is God the Father. Some Pagans think of Mother Nature as a Goddess, so this religion is often called Goddess Spirituality. It is a new religious movement, but is based on ancient spiritual practices form around the world. Nature spirituality is not a cult, and Pagans do not worship the devil. Pagans don't even believe in the devil.
If you are a religious person, I'm sure your faith means a lot to you. Perhaps you are an active member of your church, and you raised your children in the faith. Even though Paganism and Wicca may seem strange and unusual to you, I hope you'll see that Pagans are just as devoted and committed to the highest principles of nature spirituality as other people are to their faiths, whether Christian, Jewish, Muslim, or whatever. The Pagan path may not be the same as yours, but Pagans walk it with a similar sense of commitment, integrity, and responsibility. For Wiccans and Pagans, their path is about becoming a better person and working for the healing of our natural environment and our society.
It may be difficult for you to accept that someone you love is a Witch. After all, in our society, Witches are often thought to be bad people, malevolent evildoers who curse and poison their enemies. Look at the Wicked Witch in "The Wizard of Oz," for example. Of course, Pagans believe these stereotypes are inaccurate and unfair, based on centuries of misunderstanding. But it is understandable if the word "Witch" makes you uncomfortable.
Some Christians say that if you merely dabble in non-Christian religion, then you have sinned against God and are going to hell. Perhaps you're afraid that a Pagan's eternal soul may be in danger.
I honor and respect your concern. I've been studying modern Paganism since 1983, and have actually practiced the Pagan path since 1990. In other words, I spent seven years thinking about and researching Wicca and other forms of Paganism before I took the step of actually living a Pagan life. Let me share with you some of the things that I learned in the years I spent researching Paganism and Witchcraft.