What one determines to be "real" must be verified internally, within that individual. Otherwise one becomes susceptible to con games, and especially from people posing as religious experts. The worst ones are people who travel in groups, seeking additional members. The fact that they are in a group seems to validate the claim that their group is legitimate, and based on something that is "real". It, however, is possible that everyone in the group is insane, or delusional, or has been misled. Numbers don't mean anything.