Magic Forums

I have seen threads about people being attacked by "things" (I'm unsure of what to call it exactly). I have heard of people being possessed or attacked by invisible ( or visible ) forces.
To date, while I have encountered unexplained things that have frightened me and have felt threatened by things I could not explain, I have never had some long drawn out battle to rid myself or a situation of anything. Nor have I feared anything in many many years.

Now, I'm not inviting anything with my questions, but I am curious as to how frequently these things happen. I've always considered myself well protected, though I couldn't begin to tell anyone how. Perhaps I've just been lucky.

Are attacks, threats, ect frequent and something I should be concerned about?
Forgive me if I sound ignorant, I just really do not understand all the protection spells and threats from other beings.

The fact that I'm watching " The exorsism of emily rose " has nothing to do with this, I swear! =P