“And because that ‘somewhere else’ often doesn’t look like our usual physical environment, experiencers often label it as a different world, such as a heavenly realm, or a spiritual world. But that label doesn’t necessarily imply a different physical location. We sometimes talk about the ‘sports world’, or the ‘political world’, or ‘the world of entertainment’. We don’t mean different physical places, but simply different aspects of our physical world that we don’t usually pay attention to.”
From ‘After’ by Bruce Greyson