This episode actually occurred before the events recounted in the last post, but reflecting upon them, I wanted to showcase them here.
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TOWARDS the end of the above-mentioned four years, and as a true prophet he knew long before that his death would follow the close of that period, the old man, worn out with age, went in a cart one day in the month of May, as we mentioned in the preceding second Book, to visit some of the brethren who were at work. And having found them at work on the western side of the Iouan island (Hy, now Iona), he began to speak to them that day, saying, “During the paschal solemnities in the month of April now past, with desire have I desired to depart to Christ the Lord, as He had allowed me, if I preferred it. But lest a joyous festival should be turned for you into mourning, I thought it better to put off for a little longer the time of my departure from the world.” The beloved monks all the while they were hearing this sad news were greatly addicted, and he endeavoured as well as he could to cheer them with words of consolation. Then, having done this, he turned his face to the east, still seated as he was in his chariot, and blessed the island with its inhabitants; and from that day to the present, as we have stated in the Book above mentioned, the venomous reptiles with the three forked tongues could do no manner of harm to man or beast. After uttering these words of blessing, the saint was carried back to his monastery.
– St. Adomnán’s Vita Columbæ, Book III, Chapter 24.