King Alexander, then lying in Kiararey-sound, dreamed a dream, and thought three men came to him. He thought one of them was in royal robes, but very stern, ruddy in countenance, somewhat thick, and of middling size. Another seemed of a slender make, but active, and of all men the most engaging, and majestic. The third again, was of very great stature, but his features were distorted, and of all the rest he was the most unsightly. They addressed their speech to the King, and enquired whether he meant to invade the Hebrides. Alexander thought he answered that he certainly proposed to subject the islands. The Genius of the vision bade him go back; and told him no other measure would turn out to his advantage. The King related his dream; and many advised him to return. But the King would not; and a little after he was seized with a disorder, and died. The Scottish army then broke up; and they removed the King’s body to Scotland. The Hebridians say that the men whom the King saw in his sleep were St Olave King of Norway, St Magnus Earl of Orkney, and St Columba.
— The Norwegian Account of Haco’s Expedition Against Scotland,
Rev. James Johnstone, A.M., pp. 10-13.
Huius talis honorificentiae viro honorabili ab Omnipotente caelitus collatae etiam unum proferemus exemplum, quod Ossualdo regnatori Saxonico, pridie quam contra Catlonem Britonum regem fortissimum praeliaretur, ostensum erat. Nam cum idem Ossualdus rex esset in procinctu belli castra metatus, quadam die in suo papilione supra pulvillum dormiens, sanctum Columbam in visu videt forma coruscantem angelica; cuius alta proceritas vertice nubes tangere videbatur.
— St. Adomnán’s Vita Columbæ, Book I, Chapter i.