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Fludd offers interesting anecdotes from his life to elucidate the nature of Geomancy.
The Internal Principle of Terrestrial Astrology, or Geomancy
In the penultimate year of the life and reign of Elisateth, the glorious queen of England whose fame will never die, I was forced to stay in the city of Avignon during the whole of that winter, because of the severity of the weather, which covered the mountains with a lot of snow, and completely barred the journey to Italy.
In the house of a certain captain, together with many other noble and well-educated young men, and having received board from the Jesuits, I discussed philosophy with them one evening during supper, and perceived a variety of opinions concerning geomantic astrology. Some of them denied its virtue altogether, while others, on whose side I stood, vigorously defend the power of that art, and I adduced many reasons by which I proved that I was engaged in that knowledge of fate.
When the supper was over, as soon as I had betaken myself to my apartments, one of these men followed me and asked me to try my art, which he believed to be great, regarding some important matter whose resolution, he said, greatly concerned him.
After making many excuses, at last his prayers convinced me and I made him a geomantic figure in response to the question proposed by him, which was as follows: Whether the girl, by whose love he was vehemently captivated, would redeem him more than the others from the sufferings of mind and body.1
And after making him the figure, I affirmed that I could well describe the nature and disposition of the body of his beloved and, having done so, I noticed a particular mark or a certain spot, namely a fateful wart noticeable on her body, and so also I noted its place, indicating it to be on the left eyelid.2
This, of course, he also confessed. I also said that she was very fond of vineyards. He confirmed, as if exultant, adding that it was because her mother had built her house among vineyards. In short, I answered the question in this way: his beloved was inconstant and by no means firm, so much so that she loved someone else.
To which he said that he also suspected the same, and that he now saw it as if with open eyes. He then left my room with excited haste, and he reported [to the others] with some wonder the truth and power of my art.
But some of them, who happened to know this girl well, totally denied the existence of the mark described on her eyelids, until the next day, talking with her, they themselves also became witnesses to the truth of this matter, which I had explained to them by way of geomancy, and which they had not even observed before.
From here, therefore, more than I desired it, I became renowned, so that the report of this matter was carried to the ears of the Jesuits themselves. Two of them, hurrying to the steps of the palace, told the viceconsul all these things, and, moved by envy, said that there was a certain stranger present, an Englishman, who had foretold the future by a science rejected by the Catholic Church, that is, geomancy.3
These things were reported to me in the morning by the captain of the palace, named Johannes, who also referred to me the answer given to the viceconsul to these very things, which he affirmed to have been such:
“What?” said he, “This is not such an abomination as you make of it. Is there anyone among all the Cardinals of Italy who does not have his birth astrologically or geomantically described?”4 A few days afterward, the consul himself desired to speak with me, and kindly invited me to dinner. With a certain dear friend of mine, Monsieur Malceau, the apothecary of the Papal Palace, I went to the palace, where, having paid due respect in the usual manner, the viceconsul engaged with me in dialogue:
“I understand,” said he, “that you are well versed in the geomantic art; what is your opinion of that science?” To which I replied that I had proved by experience that this knowledge was essential and established by fundamental secret principles.
“How is this possible,” said he, “that there should be any certainty in something that consists of accidental points?”5
I told him: “The principle of these points made by the human hand is internal and very essential, since it is derived from the soul itself, which is the origin by this kind of movement. Moreover, the errors of this science are not caused by the soul itself, but by a perverse and incongruous movement of the body itself, moving against the intention of the soul.
Hence the general rule in this art is that the soul should be peaceful and that the body should obey it, and similarly, neither the body nor the soul should be confused or partial in the question, but let them be like a just and fair judge, and turn to God, praying from the heart that the truth may be revealed. At the same time, turn your soul energetically to the question proposed, and don’t be seduced by extraneous thoughts.”
“What then,” he answered, “is that soul of which you speak? Perhaps you understand by that your own soul, or the genius of Plato,6 or at least some angel?”
To which I answered: “An angel could not be the origin of that knowledge, since angels are divided into good and bad: good angels were seldom granted to the Arabs, Chaldeans, and Egyptians, who were the inventors of this art, and evil angels are all authors of lies rather than the truth, as the Holy Scripture testifies.”7
“From this, then,” said he, “it is evident that you yourself are not able to give a distinct and certain account of the principle in this science.”8
To which I answered that the human body is related to its soul as a servant is related to his master. A master may send his servant hither and thither with letters, without the servants in any way perceiving the intention of his master. Even a distinguished painter can send an excellent picture to a king through his servant; yet the servant is completely ignorant of the mixtures of colors and their symmetrical proportions.
In the same way, a king can impose taxes on his people through others, although the reason for these impositions is known only to the king himself. Similarly, of course, the body itself can perform what the soul commands, while remaining ignorant of the principles of this action except through its effects alone.
After hearing these things, he called me to a table standing in the midst of some of the bishops and deacons. There, taking pen and ink, he composed a geomantic figure, and very skilfully went over it, so that I could see that he himself was far more learned and expedient in that knowledge than me. Having thus finished my meal, I departed with his blessings, and visited him often afterwards; for I perceived that he was a very inquisitive prince, skilled in the sciences, kind to strangers, and in no way tyrannical.
Among the Jesuits, one was very desirous of conversing with me as a lecturer in philosophy. Therefore, at the entreaty of my dear Rheinaud, a young man of marked genius and modesty, I went to him, and was graciously received by him. There, after some philosophical discussions, he suddenly brought up geomancy, thinking perhaps that I would answer him easily.
“How is it possible” said he, “that by means of geomancy someone might be able to foretell the danger or death imminent to this or that person on his journey towards Rome? What is the participation and communication between his soul and yours, since both are contained within the human body?”
To which I answered briefly in this way: “Because the soul of each body is that chief light, having dominion over the rest of the body, no differently than the Sun in heaven has dominion over the other stars. Since the soul is the Sun of the microcosm, directing the whole body with her life-giving rays, there is no doubt that she also casts her invisible rays invisibly through the pores of the body in no other way than that Sun transmits his heavenly ones through the sieve of the elements toward the world below.9
In the same way that one star has a relation to another by ways of aspect, so that by application to one another they create the effects to be transmitted to the lower plane, so also without a doubt between the soul of one and the soul of another, which are invisible lights, rays are emitted, and by the emission they are joined together.
Thus, since either the petitioner himself or his friend is the one to who is in danger, and since the soul is very divine, and is the keeper of the body, she can foresee the future danger (for inasmuch as she is immortal, she can know the future and the present). So the soul will reveal to the querent the future secrets of the body, which the soul could not tell the body because of the body’s thickness. In this way the soul, quiet and peaceful, and prepared for judgment, very responsive to the bodily motion,10 can prognosticate without difficulty.
Moreover, Olaus Magnus,11 in his history of Finland, tells a great story about the amazing actions of the sorcerers of that region, among which he recounts the story of a certain enchantress.
It seems that when some from a remote country came to her in order to know about the state of his friends, the mode of operation was this: the witch, with some other woman and an assistant, entered the room, where, after many words muttered in silence, she took a serpent made of air, and, holding it by the tail, struck it twice with a small hammer, and having done so, she suddenly collapsed as if dead. And the other helped by driving away flies and other small animals, so that they might not touch her. Half an hour later the witch arose from her sleep, and told the truth about the petitioner’s friends.
But what does this mean, if not that the soul of that witch had communion with the souls of the querent’s friends? And since the semi-diameter of its rays was too short to reach the extremity of the soul of the friends, in order to fulfill the desire of the querent it was necessary for the her to depart from her heart to find a place where it could have communication and its application with the rays of the souls of the friends.
Doubtless the animal rays extend themselves insensibly outside the body, far beyond the field of vision, so readily can they penetrate the thinness and purity of their essential substance, as through elementary means without hindrance.
After making some other similar similar remarks, he embraced me in a friendly manner, swearing that he would regard me as his brother, and praying that I would often visit him and his brothers. This, however, I could not do because of my sudden departure from that city to the Duke of Guyse, who at that time was living in Marseilles, who sent for me to teach him and his brother, a Knight Militant, the mathematical sciences.
In conclusion, therefore, this art is a science directly dependent on the soul, in such a way that its root is the soul itself, and therefore it is more subtle than all the other sciences which man can learn in this corruptible world.
MQS

Footnotes
- I am not sure I translated the question exactly. However, the gist is correct, as may be seen from Fludd’s answer. ↩︎
- It is common for old geomancy and astrology manuals to teach how to find peculiar marks on the querent’s or other people’s body. It was a way of convincing them of the veracity of the art. ↩︎
- The status of astrology has always been ambiguous in the West. However, geomancy was more unanimously rejected as dangerous. ↩︎
- It was important for Fludd to establish the semi-official status of geomancy as a legitimate science by mentioning the common practice of horoscopy ↩︎
- The objection of the viceconsul is similar to the one already discussed by Fludd in the introduction. ↩︎
- Possibly the Socratic Daemon ↩︎
- In order to conform to the Christian orthodoxy, Fludd must deny the influence of angels, since Geomancy was not invented in the Christian West. ↩︎
- The reason for the need to establish the principles of Geomancy as a science is twofold: on one hand, to justify it, and on the other in order to conform to the Aristotelean view of science typical of the time ↩︎
- This answer is typical of the Renaissance point-of-view, which always sought to establish correspondences between the inner and the outer, the higher and the lower. ↩︎
- probably the bodily motion of the creation of the geomantic figure ↩︎
- A Swedish cartographer. ↩︎