Interestingly I've been reading a book by a missionary who went to convert a tribe in the Amazon jungle that has many parallels with Amber's experience.
Because this was outlawed(like Amber) he went ostensibly for a Linguistic organization.
Just like Amber, he had time and space away from his conditioning and the tribe had such a different way of thinking, they converted him....well he left an athiest!!
Get this ....they had no words for numbers and no counting and no words for colours. They would say the frogs are bigger ( more frogs) and the word for black was 'rotting blood' the word for red was 'like blood' and the word for green was 'like unripe'.