I don't believe that it can alter a person's life.. but I do believe that people can wish bad things, horrible things upon others that may (or maynot) happen. In the times of my grandmother, people in the Caribbeans mostly believed in this type of stuff. Voodoo, witchcraft, experimenting, etc. I was cleaning out my grandmother's house once, and actually found a voodoo doll still in its box, un opened. My grandfather practices witchcraft as well. He wishes things upon people. I don't know if its good or not; he's not close to my family. My grandmother told me that in her time, women would do voodoo on the women and families of those who stole their men.