"Once on a time," says the author, "a great church was built by Mobhí. The clerics were considering what each of them would like to have in the church. 'I should like,' said Ciaran, 'its full of church children to attend the canonical hours.' 'I should like,' said Cainnech, 'to have its full of books to serve the sons of life.' 'I should like,' said Comgall, 'its full of affliction and disease to be in my own body: to subdue me and repress me.' Then Columcille chose its full of gold and silver to cover relics and shrines withal. Mobhí said it should not be so, but that Columcille's community would be wealthier than any community, whether in Ireland or in Scotland."[5] Betaking himself northward with a growing reputation, he was offered by his cousin, then Prince of Aileach, near Derry, and afterwards monarch of Ireland, the site of a monastery on the so-called island of Derry, a rising ground of oval shape, covering some two hundred acres, along the slopes of which flourished a splendid forest of oak-trees, which gave to the oasis its name of Derry or the oak grove. Columcille, like all Gaels--and indeed all Celts--was full of love for everything beautiful in nature, both animate and inanimate, and so careful was he of his beloved oaks that, contrary to all custom, he would not build his church with its chancel towards the east, for in that case some of the oaks would have had to be felled to make room for it. He laid strict injunctions upon all his successors to spare the lovely grove, and enjoined that if any of the trees should be blown down some of them should go for fuel to their own guest-house, and the rest be given to the people. This was Columcille's first religious institution, and, like every man's firstling, it remained dear to him to the last. Years afterwards, when the thought of it came back to him on the barren shores of Iona, he expressed himself in passionate Irish poetry. "For oh! were the tributes of Alba mine From shore unto centre, from centre to sea, The site of one house, to be marked by a line In the midst of fair Derry were dearer to me. That spot is the dearest on Erin's ground, For the treasures that peace and that purity lend, For the hosts of bright angels that circle it round, Protecting its borders from end to end. The dearest of any on Erin's ground For its peace and its beauty I gave it my love, Each leaf of the oaks around Derry is found To be crowded with angels from heaven above. My Derry! my Derry! my little oak grove, My dwelling, my home, and my own little cell, May God the Eternal in Heaven above Send death to thy foes and defend thee well."[6]