SINOPSIS DEL LIBRO

<p>'There is a physical world, which we all accept as real, but there is also a spiritual world, which interpenetrates this material world and is its cause and foundation. Between these two worlds exists a threshold that can be felt, seen clairvoyantly, traversed and passed through by anyone with a real desire to do so... At this threshold there is a guardian, whose task is to stop humans from passing across it unprepared...' ? From the Introduct...Seguir leyendo