The first of the Mysteries of which we have any account, Warburton says, were those of Isis And Osiris in Egypt.

The origin of Freemasonry and Knights templar by Bennett, John Richardson, (1907) pg.4.

At one time in possession of all the learning and religion that was to be found in the world, it extended into other nations the influence of its sacred rites and its Secret Doctrines.

The importance, therefore, of the Egyptian Mysteries will entitle them to a more diffusive explanation than has been awarded to the examination of the other rites.

Ancient Mystic Oriental Masonry By R.

Swinburne Clymer pg.

The principal seat of the Egyptian Mysteries was at Memphis, in the neighborhood of the great Pyramid.

The origin of Freemasonry and Knights templar by Bennett, John Richardson, (1907) pg.

The Secret worship - Ancientdid not originate in Egypt, but in Ancient Atlantis and from thence to Egypt.

The Secret Worship has always been known as The Mysteries Mystic Oriental Masonry By R.

The ancient peoples of Egypt are thought to be the most learned in the wisdom of the Secret Doctrine.

Some have even considered Egypt was the Mother of the Mysteries.

It is said on the banks of the Nile that the Royal Art was born.

Once they returned to their own country these illumined men each declared the Egyptians to be the wisest of mortals, and the Egyptian temples to be the repositories of sublime doctrines concerning the history of the Gods and the regeneration of men.

That learning of the Egyptians, in which Moses is said to have been so skilled, was all imparted in those Mysteries.

The origin of Freemasonry and Knights templar by Bennett, John Richardson, (1907) pg.4 the Kabalah of the Ancient Hebrews, which Moses derived by initiation into the Mysteries of Egypt and Persia, and which Albert Pike and many others declare was identical among the Hebrews, the Egyptians, Hindoos and other nations of antiquity, was known as the secret doctrine.

And Moses was learned in all the wisdom of the Egyptians, and was mighty in words and in deeds.-Acts 7:22 King James Version The Ancient Mysteries had a beginning, the first of which are those of Isis and Osiris in Egypt.

The most important of these mysteries were the Osiric in Egypt.

Albert G Mackey 33, Encyclopedia of Freemasonry p.497 From Egypt the Mysteries went to Phonecia and were celebrated at Tyre.

Osiris changed his name and became Adonai or Dionusus, still the representative of the Sun.

Albert Pike 33: Morals and Dogma p.

In this time, the Mysteries ruled the world.

This often results in confusion of who is the evil and good gods.

Some calling Osiris the Satan figure while others saying Typhon or Set.

Thus, Isis is the symbol of the Atlantean Mystery School and Freemasonry as an institution.

Horus represents the body of illumined Initiates who were born again out of the womb of Isis or the Mystery School.

Plato Mystery School