Druid's Counsel
A Druid's counsel was sometimes of service. A certain dwarf magician of Erregal, Co. Derry, had done a deal of mischief before he could be caught, killed, and buried. It was not long before he rose from the dead, and resumed his cruelties. Once more slain, he managed to appear again at his work. A Druid advised Finn Mac Cumhail to bury the fellow the next time head downward, which effectually stopped his magic and his resurrection powers.
Fintain was another hero of antiquity. When the Deluge occurred, he managed by Druidic arts to escape. Subsequently, through the ages, he manifested himself in various forms. This was, to O'Flaherty, an evidence that Irish Druids believed in the doctrine of metempsychosis. Fintain's grave is still to be recognized, though he has made no appearance on earth since the days of King Dermot.
It is not safe to run counter to the Druids. When King Cormac turned against the Craft, Maelgenn incited the Siabhradh, an evil spirit, to take revenge. By turning himself into a salmon, he succeeded in choking the sovereign with one of his bones. It was Fraechan, Druid of King Diarmaid,. who made the wonderful Airbhi Druadh, or Druidical charm, that caused the death of three thousand warriors.
A King was once plagued by a lot of birds wherever he went. He inquired of his Druid Becnia as to the place they came from. The answer was, "From the East." Then came the order—"Bring me a tree from every wood in Ireland." This was to get the right material to serve as a charm. Tree after tree failed to be of use. Only that from the wood of Frosmuine produced what was required for a charm. Upon the dichetal, or incantation, being uttered, the birds visited the King no more.
In the Book of Lecan is the story of a man who underwent some remarkable transformations. He was for 300 years a deer, for 300 a wild boar, for 300 a bird, and for the like age a salmon. In the latter state he was caught, and partly eaten by the Queen. The effect of this repast was the birth of Tuan Mac Coireall, who told the story of the antediluvian colonization of Ireland. One Druid, Trosdane, had a bath of the milk of thirty white-faced cows, which rendered his body invulnerable to poisoned arrows in battle.
A Druid once said to Dathi, "I have consulted the clouds of the man of Erin, and found that thou wilt soon return to Tara, and wilt invite all the provincial Kings and chiefs of Erin to the great feast of Tara, and there thou shalt decide with them upon making an expedition into Alba, Britain, and France, following the conquering footsteps of thy great-uncle Niall." He succeeded in Alba, but died in Gaul. A brother of his became a convert to St Patrick.