In Celtic wisdom the sacred is as present on earth as it is in heaven, as immanent as it is transcendent, as human as it is divine, as physical as it is spiritual. The sacred can be breathed in, tasted, touched, heard, and seen as much in the body of the earth and the body of another living being as in the body of religion. It is the true essence of all life.
The world is full of implicit religion, and the inspired saints and poets, who say that the birds "praise God" when they sing, are in no way mistaken. Because it is their tiny life itself which sings the "great life" and makes heard, through its countless variations, the same news which is as old as the world and as new as the day: "Life lives and vibrates in me." What homage to the source of life is expressed by these small streams of life: the birds which sing!"