"I am the point of the lance of battle. [The spinal cord, the Sushumna nadi of Indian Psychology.] I am the God who creates in the head of man the fire of the thought. Who is it throws light into the meeting on the mountain? [The meeting of the mortal and the immortal on Mount Meru, the pineal gland.] Who announces the ages of the moon? [The activity of the inner astral man.] Who teaches the place where courses the sun?" [Spirit.] The Serpentine Power is the couch of the sun, the casket of spirit. Hence the Druids or Magi who had mastered this power were called Serpents. Though St. Patrick is said to have driven the serpents out of Ireland, traces still remain of the serpent wisdom. Lest the interpretation given should seem arbitrary I will trace further explicit references to the third eye. Diarmuid, the hero and darling of so many story-tellers, whose flight with Grania forms one of the most mystic episodes in Celtic romance, is described as having a spot in the centre of his forehead which fascinated whoever gazed. He is called the "Son of the Monarch of Light." He is the Initiate, the twice-born. This divine parentage has the sense in which the words were spoken. "Marvel not that I said unto thee, ye must be born again." In the same sense a Druid is described as "full of his God." From the mystic Father descends the Ray, the Child of Light. It is born in man as mind, not reasoning: earthly not sensual, but as the heaven-aspiring, thinking mind. In itself it is of the nature of fire. The man who knows it becomes filled with light, aye, he moves about in light within himself. The following description of a giant, taken from the story of Diarmuid, refers to still another aspect of our occult nature. "He has, but one eye only in the fair middle of his black forehead. .... He is, moreover, so skilled in magic that fire could not burn him, water could not drown him, and weapons would not wound him. ...... He is fated not to die until there be struck upon him three blows of the iron club he has. He sleeps in the top of that Quicken tree by night, and he remains at its foot by day to watch it. .... The berries of the tree have the virtues of the trees of faeryland."