It is perhaps not remarkable that upright objects should be selected because of their form as the simplest expression of phallic ideas. The simple upright for purposes of sex worship is universally found. An upright conical stone is frequently mentioned. Many of the stone idols or pillars, the worship of which was forbidden by the Bible, come under this group. Likewise, the obelisk, found not only in Egypt, but in modified forms in many other countries as well, embodies the same phallic principle. The usual explanation of the obelisk is that it represented the rays of the sun striking the earth: when we speak of sun worship later, we shall see that this substantiates rather than refutes the phallic interpretation. The mounds of religious significance, found in many countries, were associated with sex worship. The Chinese pagodas are probably of phallic origin. Indeed, there is evidence to show that the spires of our Churches owe their existence to the uprights or obelisks outside the Temples of former ages. A large volume has been written by O'Brien to show that the Round Towers of Ireland (upright towers of pre-historic times) were erected as phallic emblems. Higgins, in the Anacalipsis, has amassed a great wealth of material with similar purport, and he shows that such "temples" as that of Stonehenge and others were also phallic. The stone idols of Mexico and Peru, the ancient pillar stones of Brittany, and in fact all similar upright objects, erected for religious purposes the world over, are placed in this same category. We shall presently give a number of references to show that the May-pole was associated with phallic worship and that it originated at a very remote period. We shall now quote from some of the authors who have contributed to our knowledge of this form of symbolism, as thereby a clear idea of their meaning may be set forth. These interpretations are not generally advanced, and therefore we have added considerable corroborative evidence which we have been able to obtain from independent sources.