The voices of birds I do not reverence,

Nor sneezing, nor any charm in this wide world.

Christ, the Son of God, is my Druid.

There are Gaelic stories about Druids who read the omens of the air and foretell the fates of individuals at birth, fix the days on which young warriors should take arms, &c.

In England, Scotland, Ireland, and Wales not only trees and birds were reverenced, but also standing stones, which are sometimes referred to even in modern Gaelic as "stones of worship". Some stories tell of standing stones being transformed into human beings when struck by a magician's wand. The wand in one story is possessed by a "wise woman". Other traditions relate that once a year the stones become maidens who visit a neighbouring stream and bathe in it. A version of this myth survives in Oxfordshire. According to Tacitus there were on the island of Mona (Anglesea), which was a centre of religious influence, not only Druids, but "women in black attire like Furies"—apparently priestesses. As has been noted, a large number of dolmens existed on Mona, in which there were also "groves devoted to inhuman superstitions".[116]

The early Christian writers refer to the "worship of stones" in Ireland. In the seventh century the Council at Rouen denounced all those who offer vows to trees, or wells, or stones, as they would at altars, or offer candles or gifts, as if any divinity resided there capable of conferring good or evil. The Council at Arles (a.d. 452) and the Council at Toledo (a.d. 681) dealt with similar pagan practices. That sacred stones were associated with sacred trees is indicated in a decree of an early Christian Council held at Nantes which exhorts "bishops and their servants to dig up and remove and hide in places where they cannot be found those stones which in remote and woody places are still worshipped and where vows are still made". This worship of stones was in Britain, or at any rate in part of England, connected with the worship of the heavenly bodies. A statute of the time of King Canute forbids the barbarous adoration of the sun and moon, fire, fountains, stones, and all kinds of trees and wood. In the Confession attributed to St. Patrick, the Irish are warned that all those who adore the sun shall perish eternally. Cormac's Glossary explains that Indelba signified Images and that this name was applied to the altars of certain idols. "They (the pagans) were wont to carve on them the forms of the elements they adored: for example, the figure of the sun." Irish Gaels swore by "the sun, moon, water, and air, day and night, sea and land". In a Scottish story some warriors lift up a portion of earth and swear on it. The custom of swearing on weapons was widespread in these islands. In ancient times people swore by what was holiest to them.[117]

One of the latest references to pagan religious customs is found in the records of Dingwall Presbytery dating from 1649 to 1678. In the Parish of Gairloch, Ross-shire, bulls were sacrificed, oblations of milk were poured on the hills, wells were adored, and chapels were "circulated"—the worshippers walked round them sunwise. Those who intended to set out on journeys thrust their heads into a hole in a stone.[118] If a head entered the hole, it was believed the man would return; if it did not, his luck was doubtful. The reference to "oblations of milk" is of special interest, because milk was offered to the fairies. A milk offering was likewise poured daily into the "cup" of a stone known as Clach-na-Gruagach (the stone of the long-haired one). A bowl of milk was, in the Highlands, placed beside a corpse, and, after burial took place, either outside the house door or at the grave. The conventionalized Azilian human form is sometimes found to be depicted by small "cups" on boulders or rocks. Some "cups" were formed by "knocking" with a small stone for purposes of divination. The "cradle stone" at Burghead is a case in point. It is dealt with by Sir Arthur Mitchell (The Past in the Present, pp. 263-5), who refers to other "cup-stones" that were regarded as being "efficacious in cases of barrenness". In some hollowed stones Highland parents immersed children suspected of being changelings.

A flood of light has been thrown on the origin of Druidism by Siret,[119] the discoverer of the settlements of Easterners in Spain which have been dealt with in an earlier chapter. He shows that the colonists were an intensely religious people, who introduced the Eastern Palm-tree cult and worshipped a goddess similar to the Egyptian Hathor, a form of whom was Nut. After they were expelled from Spain by a bronze-using people, the refugees settled in Gaul and Italy, carrying with them the science and religious beliefs and practices associated with Druidism. Commercial relations were established between the Etruscans, the peoples of Gaul and the south of Spain, and with the Phœnicians of Tyre and Carthage during the archæological Early Iron Age. Some of the megalithic monuments of North Africa were connected with this later drift.

The goddess Hathor of Egypt was associated with the sycamore fig which exudes a milk-like fluid, with a sea-shell, with the sky (as Nut she was depicted as a star-spangled woman), and with the primeval cow. The tree cult was introduced into Rome. The legend of the foundation of that city is closely associated with the "milk"-yielding fig tree, under which the twins Romulus and Remus were nourished by the wolf. The fig-milk was regarded as an elixir and was given by the Greeks to newly born children.

Siret shows that the ancient name of the Tiber was Rumon, which was derived from the root signifying milk. It was supposed to nourish the earth with terrestrial milk. From the same root came the name of Rome. The ancient milk-providing goddess of Rome was Deva Rumina. Offerings of milk instead of wine were made to her. The starry heavens were called "Juno's milk" by the Romans, and "Hera's milk" by the Greeks, and the name "Milky Way" is still retained.