Celtic spirituality is awakening so powerfully now because it illuminates the fact that the visible is only one little edge of things. The visible is only the shoreline of the magnificent ocean of the invisible. The invisible is not empty, but is textured and tense with presences. These presences cannot be named, they can only be sensed, not seen. 

~ John O’Donohue

Bay of Elgol, Isle of Skye, Scotland – photo by rdonar, bigstockphoto.com