Spirituality, Delusion, and Evil

I've always thought that spirituality meant a strong (and growing) relationship with God, essentially. It has only recently begun to seep in to me that "spirituality" isn't always about being good or about doing positive, honest, and righteous things by God. There are some people who use their spirituality, such as radical Muslim extremists (although not limited to them, by any means), to justify any and all selfish behavior and, hence, worship darkness instead of light. So in this vein, I suppose even satanism and devil worship could be considered "spirituality," as oxymoronic as that still seems to me.

The reason these people are so dangerous is that they have fully and truly deluded themselves into thinking their position is right by God. If you are doing things out of spite, anger, and cruelty, you obviously are not right with God. But then again, some people embrace the darkness as if it were light, hence the delusion. The best that can be done with people like that is to remove them from your life, protect yourself fully, and pray that God gives them the wake up call they sorely need. God help their pitiful souls in this life and then next. Indeed, may God have mercy on us all, every one.