“If you listen to someone talking to themselves, what they are saying is basically the same as what people are always saying to themselves in their own minds. The difference is generally not in the content, but that they are saying it aloud. The line between talking silently to oneself and talking those same thoughts out loud, unchecked and unawares, is the demarcation of sanity. If one wants to venture into extra-sensory experiences of life then one should have a very firm grip of that line. Otherwise, the fine line of sanity will be transgressed and the person may have a hard time retrieving it which explains why many spiritual groups are full of loonies.”
Book:Purnima