Plastic shamans are believed by their critics to use the mystique of these cultural traditions, and the legitimate curiosity of sincere seekers, for their personal gain. In some cases, exploitation of students and traditional culture may involve the selling of fake "traditional" spiritual ceremonies, fake artifacts, fictional accounts in books, illegitimate tours of sacred sites, and often the chance to buy spiritual titles. Often Native American symbols and terms are adopted by plastic shamans, and their adherents are insufficiently familiar with Native American religion to distinguish between imitations and actual Native religion.