REBIRTH AND TRANSMIGRATION.
In Irish sagas, rebirth is asserted only of divinities or heroes, and, probably because this belief was obnoxious to Christian scribes, while some MSS. tell of it in the case of certain heroic personages, in others these same heroes are said to have been born naturally. There is no textual evidence that it was attributed to ordinary mortals, and it is possible that, if classical observers did not misunderstand the Celtic doctrine of the future life, their references to rebirth may be based on mythical tales regarding gods or heroes. We shall study these tales as they are found in Irish texts.
In the mythological cycle, as has been seen, Etain, in insect form, fell into a cup of wine. She was swallowed by Etar, and in due time was reborn as a child, who was eventually married by Eochaid Airem, but recognized and carried off by her divine spouse Mider. Etain, however, had quite forgotten her former existence as a goddess.[1193]
In one version of Cúchulainn's birth story Dechtire and her women fly away as birds, but are discovered at last by her brother Conchobar in a strange house, where Dechtire gives birth to a child, of whom the god Lug is apparently the father. In another version the birds are not Dechtire and her women, for she accompanies Conchobar as his charioteer. They arrive at the house, the mistress of which gives birth to a child, which Dechtire brings up. It dies, and on her return from the burial Dechtire swallows a small animal when drinking. Lug appears to her by night, and tells her that he was the child, and that now she was with child by him (i.e. he was the animal swallowed by her). When he was born he would be called Setanta, who was later named Cúchulainn. Cúchulainn, in this version, is thus a rebirth of Lug, as well as his father.[1194]
In the Tale of the Two Swineherds, Friuch and Rucht are herds of the gods Ochall and Bodb. They quarrel, and their fighting in various animal shapes is fully described. Finally they become two worms, which are swallowed by two cows; these then give birth to the Whitehorn and to the Black Bull of Cuailgne, the animals which were the cause of the Táin. The swineherds were probably themselves gods in the older versions of this tale.[1195]
Other stories relate the rebirth of heroes. Conchobar is variously said to be son of Nessa by her husband Cathbad, or by her lover Fachtna. But in the latter version an incident is found which points to a third account. Nessa brings Cathbad a draught from a river, but in it are two worms which he forces her to swallow. She gives birth to a son, in each of whose hands is a worm, and he is called Conchobar, after the name of the river into which he fell soon after his birth. The incident closes with the words, "It was from these worms that she became pregnant, say some."[1196] Possibly the divinity of the river had taken the form of the worms and was reborn as Conchobar. We may compare the story of the birth of Conall Cernach. His mother was childless, until a Druid sang spells over a well in which she bathed, and drank of its waters. With the draught she swallowed a worm, "and the worm was in the hand of the boy as he lay in his mother's womb; and he pierced the hand and consumed it."[1197]
The personality of Fionn is also connected with the rebirth idea. In one story, Mongan, a seventh-century king, had a dispute with his poet regarding the death of the hero Fothad. The Fian Caoilte returns from the dead to prove Mongan right, and he says, "We were with thee, with Fionn." Mongan bids him be silent, because he did not wish his identity with Fionn to be made known. "Mongan, however, was Fionn, though he would not let it be told."[1198] In another story Mongan is son of Manannan, who had prophesied of this event. Manannan appeared to the wife of Fiachna when he was fighting the Saxons, and told her that unless she yielded herself to him her husband would be slain. On hearing this she agreed, and next day the god appeared fighting with Fiachna's forces and routed the slain. "So that this Mongan is a son of Manannan mac Lir, though he is called Mongan son of Fiachna."[1199] In a third version Manannan makes the bargain with Fiachna, and in his form sleeps with the woman. Simultaneously with Mongan's birth, Fiachna's attendant had a son who became Mongan's servant, and a warrior's wife bears a daughter who became his wife. Manannan took Mongan to the Land of Promise and kept him there until he was sixteen.[1200] Many magical powers and the faculty of shape-shifting are attributed to Mongan, and in some stories he is brought into connection with the síd.[1201] Probably a myth told how he went to Elysium instead of dying, for he comes from "the Land of Living Heart" to speak with S. Columba, who took him to see heaven. But he would not satisfy the saints' curiosity regarding Elysium, and suddenly vanished, probably returning there.[1202]
This twofold account of Mongan's birth is curious. Perhaps the idea that he was a rebirth of Fionn may have been suggested by the fact that his father was called Fiachna Finn, while it is probable that some old myth of a son of Manannan's called Mongan was attached to the personality of the historic Mongan.
About the era of Mongan, King Diarmaid had two wives, one of whom was barren. S. Finnen gave her holy water to drink, and she brought forth a lamb; then, after a second draught, a trout, and finally, after a third, Aed Slane, who became high king of Ireland in 594. This is a Christianised version of the story of Conall Cernach's birth.[1203]
In Welsh mythology the story of Taliesin affords an example of rebirth. After the transformation combat of the goddess Cerridwen and Gwion, resembling that of the swine-herds, Gwion becomes a grain of wheat, which Cerridwen in the form of a hen swallows, with the result that he is reborn of her as Taliesin.[1204]