Mia: right on. Evil exists. How it manifests can be argued forever (and has been).
I always found it funny, growing up Catholic, that we were expected to believe in:
exorcism of places, blessings bestowed with holy water, images of dieties, praying, saints, incense "cleansing" at the start of high mass, etc, but were then told to reject anything else that was (IMO) very similar from other cultures/religions/schools of thought:
Native American "smudgings"
Meditation
Chakra energies
Buddhist philosophy
Energy healing
Hindu Dieties
Yin/Yang concepts
you name it, if it wasn't "Christian" (espcially the Catholic version), it was suspect.
It's all the same, we're all the same. Good is in all of it, Evil is in all of it.