i ended up going back to all the bigger public ceremonies that sally ann glassman would hold. >> as the celebration of the day of the dead danced on, there seemed to be a discernible change in sally ann's countenance. >> there's different levels of possession a person can experience and when i go into that kind of state, i have no idea what's happened. i just know that when i come out of it, people are looking at me funny and i'm in a different place than i was before. >> all of these herbs have different uses. >> sally ann says she has been accused of casting spells on people, something she says she wouldn't do even if she could. she says using black magic can be risky business. professor ward says cursing someone in voodoo, such as sticking pins in dolls, is not something to fool around with. >> all religions are used that way, period, full stop. i've done it and you've done it. have you ever cursed somebody? we're all capable of bringing mild to big curses on others. in voodoo what goes around comes around, and if i curse you, i'll get fixed. >> she describes voodoo as a religion tha