I was wondering if dreams and altered state experiences could be perceived externally in a way. It would seem as something internal, since it takes place within the mind, but so does everything we experience and 'filter' through schema. Taking into account that dreams, even when the dreamer is aware of dreaming, are something we do not consciously construct, but in the way we experience them, they happen before our 'inner eyes', I would love to hear some opinions and explanations on it.