To primitive man, the visible sources whence proceeded his daily sustenance doubtless constituted the first objects of his regard and adoration. Hence, in addition to the homage paid to the earth, in due course of time would be added the worship of trees, upon which the early race was directly dependent for food. At a time when the art of agriculture had not been attained, all such trees as yielded their fruit for the support of the human race, and which afforded to mankind pleasant beverages or cooling shade, would come to be regarded as embodying the universal beneficent principle—the great creating and preserving agency of Nature, and therefore as proper objects of veneration.
According to the Phoenician theogony, "the first gods which were worshipped by oblations and sacrifices were the fruits of the earth, on which they and their descendants lived as their forefathers had done."
Although, after the art of agriculture had been developed, mankind was gradually relieved from its past dependence on the tree as a means of support, it nevertheless continued to be regarded with veneration as an emblem of creative power or of productive energy.
Among the traditions and monuments of nearly every country of the globe are to be found traces of a sacred tree—a Tree of Life. In various countries there appear two traditional trees, the one typical of the continuation of physical life, the other representing spiritual life, or the life of the soul. After the age of pure Nature-worship had passed, however, and serpent, fire, and phallic faiths had been introduced, the original signification of the tree, like that of all other religious emblems, became considerably changed. Through its energies, or life-giving properties, existence had long been maintained, and for this reason, as has already been observed, it became an object of veneration; but, after the reproductive power in man had risen to the dignity of a supreme God, the tree, to the masses of the people, became a symbol of the physical, life-giving energy in mortals and in animals. In other words, it became a phallic emblem representing the continuation of existence, or the power to reproduce or continue life on the earth. As a religious symbol it became the traditional Tree of Life.
The tree, like nearly every other object in nature, was and still is, in various parts of the world, either female or male, and all ideas connected with it are sacred and closely interwoven with sex.
The extent to which trees have been venerated in past ages seems to be little understood, and there are doubtless few persons, at the present time, who would willingly believe that all along the religious stream, from its source to its latest developed branches, are to be observed traces of this ancient worship, which, in its earliest stages, was simply a recognition of Nature's bounties.
Barlow, in his work on Symbolism, says that "the most generally received symbol of life is a tree—as also the most appropriate."
Again the same writer observes: "Besides the monumental evidence thus furnished of a sacred tree, or Tree of Life, there is an historical and traditional evidence of the same thing, found in the early literature of various nations, in the customs, and popular usages."(6) As tree- and sun-worship, or the adoration of Nature's processes, finally became interwoven with phallic faiths, its history can be understood only after these later developments in the religious stream have been examined, or after the true significance of the serpent as a religious emblem, and the various ideas connected with the traditional Tree of Life, have been exposed.
6) Essays on Symbolism, p. 84.
The palm, the pine, the oak, the banian, or bo, and many other species of trees, have, at different times, and by various nations, been invested with divine honors; but, in oriental countries, by far the most sacred among them is the Ficus Religiosa, or the holy bo tree of India. Something of the true significance of the traditional Tree of Life may be observed in the ideas connected with the worship of this emblem. The fig, when planted with the palm, as it frequently is in the East, near temples and holy shrines, is regarded as a peculiarly sacred object. When entwining the palm, which is male, it is always female; from their embrace Kalpia, or passion, is developed. This union causes the continuation of existence and the "revolutions of time." The whole constitutes the Tree of Life.