I'm not surprised to hear that. It's a shamanic plant. They're used to bridge to other, let's say realms.
Stands to reason, if you go somewhere without a map or a guide and you don't even know how to speak the language, you're very lucky if you don't get hurt, lost or attacked by a local.
IOW, either their souls are shattered or doors have been opened in their consciousness they don't know how to close and stuff just keeps floating through.