'The otherworld of the Celts has various names, such as Avalon, Tir na nog ( Land of Youth ) and Plain of Delight. Examination of the stories makes it clear that this realm would have to exist in a higher dimension. To reach it, one must go to the right place in a three-dimensional space, and then one must travel in a mystical fashion that we do not understand. We can speak of this as an extra dimension of travel in to the three we are familiar with.'
