“Certainly there was an undercurrent of things esoteric, in the most mystical sense of the word, beneath the surface of Illuminism. In this respect, the (Illuminati) Order followed exactly in the footsteps of the Knights Templars. The Templars returned to Europe after the Crusades, bringing with them a number of choice fragments of Oriental occult lore, some of which they had gathered from the Druses of Lebanon, and some from the disciples of Hasan Ibn-al-Sabbah, the old wizard of Mount Alamut.
If there was a deep mystical current flowing beneath the surface of Illuminism, it is certain that Adam Weishaupt was not the Castalian Spring (Origin of).
Perhaps the lilies of the Illuminati and the roses of the Rosicrucians were, by a miracle of Nature, flowing from the same stem?
The old symbolism would suggest this, and it is not always wise to ignore ancient landmarks. There is only one explanation that meets the obvious and natural requirements of the known facts.
The Illuminati were part of an esoteric tradition which had descended from remote antiquity and had revealed itself for a short time among the Humanists of Ingolstadt, Germany.
One of the blossoms of the “sky plant” was there, but the roots were afar in better ground”
– Manly P. Hall