This is so you know how to pray restorational prayers for those who have been caught up or brought up into this.

All direct quotes Taken from "Celtic Mythology," Geddes & Grosset 1999 (General historical/mythology book)

One of the four great annual Celtic festivals was Beltane. It was celebrated on 1 May and marked the beginning of the Celtic summer. It was named after Belenus and was associated with bonfires that were lit on the night before the festival. The ordinary household fires would be extinguished and the druids would light bonfires, supposedly using torches lit by the rays of the sun. The festival was associated with regeneration and regrowth after the ravages of winter.

"In Irish Celtic mythology, Brigit seems to have been one of the goddesses who was both a single goddess and a triple goddess. Her name meant 'exalted one' and she was associated with healing, fertility, crafts, poetry and learning. According to the one legend, she was the daughter of the Daghda and may have been the wife of Bres and the mother of Ruadan. When Ruadan returned home to die, his parents mourned for him, thus inventing keening. As well as being a pagan goddess, Brigit became a Christian saint who took over some of the traditions and associations of the goddess as well as her name. 

"In Celtic mythology and culture, the bull was important. It was a symbol of strength and virility as well as aggression, the latter symbolised by its horns, which were often depicted in carvings, figurines, etc, in exaggerated form. Bull heads were sometimes used as handles for buckets, and bull statuettes seem to have existed form the seventh century BC.
Bull sacrifice appears to have been common among the Celts, and examples are depicted on the silver Gundestrup Cauldron. The bull was also associated with other Celtic rituals. At the Tarbhfeis, which took place to chose a high king of Ireland, a bull was slain and its flesh eaten and its blood drunk by a druid, who then went to sleep and was supposed  to dream of the person who was to be high king.
In mythology, the most famous legend involving a bull is contained in the Táin Bó Cuailgne, the story of how Donn Cualigne, the famous great brown bull of Ulster, was taken by Medb of Connacht.

"In Celtic culture, a druid was a priest. The name druid is thought to have come from drus, the ancient name for the oak tree, which was sacred to the druids. As well as being priests, the druids were teachers, poets, philosophers, seers and judges. Druids represented the most powerful force in Celtic society. Druids were extremely highly trained and this rigorous training could go on for as long as twenty years.

EIRE:  The name given to southern Ireland today is Eire. The name derives from the goddess Eriu.

FIRE: "The veneration of fire was important to the Celts. Bonfires were lit both at the festival of Beltane on 1 May and at a festival of Samhaín on 1 November. The Celts may have thought of fire as the earthly element that corresponds to the sun in the sky. Wheel-rolling also played a part in the Celtic fire rituals, the wheels being set ablaze and rolled downhill. Another reported Celtic fire ritual suggests that the Celts went in for human sacrifice. Images in the human shape and made of wicker were supposedly filled with sacrificial animals and people and set alight.

GOAT:  "In Celtic mythology and beliefs, the goat was a representation of fertility. A goat is sometimes depicted as accompanying the Roman-Celtic god Mercury, and the goat seems in some aspects to have been interchangeable with the ram, also a representation of fertility. Like the ram, the goat also had associations with aggression, particularly sexual aggression. Horned gods were a common part of Celtic culture. Often these horns were representations of ram's horns and often they were representations of deer antlers but sometimes they were goat's horns.HARP:

The Irish harp is referred to extensively in Celtic myths and legends, and there are examples of it depicted on Celtic stone carvings dating from the eight and ninth centuries in Ireland and in the west of Scotland. However, there are only fourteen surviving instruments and fragments of instruments from the whole of the early period during which the traditional form of the Irish harp flourished. The lack of concrete information is further exacerbated by the fact that the makers of the traditional Irish harp were not in the habit of either signing the instruments or dating them. What is known is that the Irish harps were of heavier and bulkier construction than harps in other countries and, perhaps from the twelfth century, were strung with brass. There were two distinct forms of European harp by the fourteenth century, one being the sturdily built Irish harp and the other being a lighter, more delicate instrument commonly referred to as the Gothic or Romanesque harp. Legend has it that the harp came into being after a woman fell asleep on the seashore and heard the wind blowing through the sinews of the skeleton of a whale that way lying near her. On hearing her story, her husband made a wooden frame and equipped it with whale sinews to make the first harp. A less romantic account of the origins of the harp suggests that the instrument was brought to Ireland from Greece.

There is some evidence of rituals involving dead babies in the Celtic culture, although whether the babies all died naturally or whether some were the result of human sacrifice is not known. It is thought that interred infants may have regarded as a means of propitiating the gods or as a means of conferring a blessing as a means of propitiating the gods or as a means of conferring a blessing. Certainly it has been ascertained that the corpses of babies were included in the foundations of shrines and sanctuaries. At a shrine in Cambridge, dead babies were buried wearing shoes that were several sizes too big for them, perhaps because it was felt that the babies would go on growing in the Otherworld.

"The Roman god was adopted by the Celts into their own cult. He was often given a Celtic epithet, as Jupiter Taranis, Taranis being the Celtic thunder god.

The idea of elite groups of warriors was part of Irish Celtic legend before King Arthur and his Knights of the Round Table came on the scene. The Fianna were the members of an elite bodyguard who guarded the high kings of Ireland, founded in 300 BC by Fiachadh, the high king. There was also an Ulster military called the Red Branch, whose greatest champion was Cúchulainn. This group of warriors was founded by Ross the Red of Ulster.

It was a custom of the Celts to present models of diseased limbs to deities at the various healing shrines and sanctuaries. Sometimes these were in wood and sometimes they were in stone. Models of organs other than arms or legs, such as breasts, heads, eyes and internal organs, were also presented. The idea obviously was that if a votive limb or other organ was given to a god or goddess then he or she would cure the actual limb or organ of any disease. Evidence of the practice of limb of organ votives has been found at various excavated sites. The offering of models of limbs and organs to deities for healing purposes was not confined to the Celts, it being found in various other early cultures.

"In August 1984 part of a human body was uncovered in a peat bog at Lindow Moss in Cheshire. The body was that of a young man and it was face down in a crouching position and painted in different colours. He was naked apart from an armlet of fur. The young man, who became known as 'Lindow Man' had probably been placed in the bog around the fourth century BC. Lindow Man is thought to be evidence of the Celtic practice of human sacrifice. He had been hit in the head and garrotted, and he looked as though he had been pushed from the back into the bog. His stomach contents revealed the presence of mistletoe pollen, suggesting that the young man may have featured in some form of druid sacrifice. 

"The Celts, particularly druids, were much connected with the partially parasitic plant mistletoe. It seems to have been regarded as a cure for barrenness if it was mixed in a drink, and it is likely to have been used in fertility rites. The oak tree on which mistletoe grows was sacred to the druids. They used oak trees to form sacred groves and they used oak branches in sacred rites. When Lindow Man was discovered, he was found to have mistletoe pollen in his stomach, causing speculation that he had taken part in some form of druidic human sacrifice.

"The concept of abundance and fertility was important in Celtic culture. Various goddess were associated with this concept, being regarded as divine earth-mothers, often being referred to as a matronae in Gaul an the Rhineland. Such goddesses can often function both as single-goddesses and as a triple goddesses. Mother-goddesses are often depicted on sculptures as wearing long garments and sometimes have one breast bared. They are often accompanied by some kind of symbol of fertility, such as babies, fruit or loaves, and are often presented in groups, although single images of mother-goddesses are also common.
In Irish Celtic mythology, the mother-goddess in prominent. They are often triple goddesses, being associated with other concepts as well as fertility. Macha and Morrigan are cases in point.

In Celtic culture, the oak tree had sacred connections, being associated with the druids. Indeed, it has been suggested that the word 'druid' might be derived from the root dru, meaning oak. The druids used oak trees to form sacred groves and used oak branches in some of their rites. Mistletoe, also used in druidic ritual, grows on oak trees. The oak was revered for its strength and its longevity, and was sometimes thought of as being representatives of the Tree of Life, which linked the mortal world with the Otherworld. Oak trees were associated with the sky, and solar gods and many of the Celtic images and carvings that have been uncovered in archaeological excavations have been found to be made of wood from oak trees, showing the regard in which these were held. Many of the Celtic sailing ships were made of oak, making these particularly durable. Oak was also used to build bridges and plank-built houses. In the Celtic Christian era, churches and monasteries in Ireland were often constructed near oak trees.

"That the Celts venerated the sun is obvious from the motifs on various artefacts that have come to light during archaeological expeditions. Particularly common are depictions to the wheel as a solar symbol. Although it is to be expected that the Celts would be sun-worshipers since they venerated natural phenomean generally, such as water and trees, there is little evidence of sun gods in Celtic literature. The Irish god Lugh, whose name means 'shining one' who had a beautiful, radiant countenance and was associated with light, is an obvious candidate to have been a sun god. The Gaulish god Belenus was also associated with light, the world bel being translated as 'bright' but he was known as a god of light and healing rather than specifically as a sun god. 

SWASTIKA:  "In Celtic Europe, the swastika was a solar motif in the way that the wheel was. Swastikas have been found on stone altars and as a motif on artefacts. Sometimes it appears alone and sometimes accompanied by a wheel motif. It is thought that perhaps it was indicative of good luck as well as being a solar motif.

TARA:  "For many centuries the most sacred place in Ireland, and the main residence of the high kings was Tara in County Meath, the ancient site dating back to 2000BC. It was regarded as the Celtic capital of Ireland, being an important religious and political centre, although the site of Tara is thought to have been a sacred one long before the Celts, possibly from Neolithic times. Tara features in various Irish Celtic legends. It was the capital of the Tuaha Dé Danaan and the location of the court of Conchobar Mac Nessa and thus the home of the Red Branch.