the aztecks where some of the first people to use writen languge, and ritualy used halusagens to speak to spirtual guides. sure there belifes where a little strange, but who's isn't. they belived in the "day of the dead" where all things man made wil rise up against us and kill off man. the taking of the ibognane root, causes a spirtual trip where you see and speak to the spirit of the ibogas, a gholam like creature made of wood that would appear to you and show you the error of your ways. salvia has been known to show you a women "gardening" a healing spirit.