I saw the tilma as a young boy when my family visited Mexico. I have since read a couple of books about it. Study of the tilma has revealed startling things.
I can’t remember the titles of the books but I encourage people to seek out the book that talks about scientific study of the tilma. It’s very interesting. It is impossible to paint fine details on the rough material used to make the cloak, yet the painting displays very fine details.
It’s a wonderful story.
http://mtncatholic.com/2014/12/11/4-literally-awesome-facts-about-our-lady-of-guadalupe/
Heres four (literally) awesome facts about the tilma of Our Lady of Guadalupe:
1. It has qualities that are humanly impossible to replicate.
Made primarily of cactus fibers, a tilma was typically of very poor quality and had a rough surface, making it difficult enough to wear, much less to paint a lasting image on it. Nevertheless, the image remains, and scientists who have studied the image insist there was no technique used beforehand to treat the surface. The surface bearing the image is reportedly like silk to the touch, while the unused portion of the tilma remains coarse.
Whats more, experts in infrared photography, studying the tilma in the late 1970s, determined that there were no brush strokes (none!), as if the image was slapped onto the surface all at once, and it was discovered by Dr. Phillip Callahan, a biophysicist at the University of Florida, that the difference of appearance with its texturing and coloration of Our Ladys skin up close compared to a small distance away is impossible to recreate:
Such a technique would be an impossible accomplishment in human hands. It often occurs in nature, however, in the coloring of bird feathers and butterfly scales, and on the elytra of brightly colored beetles By slowly backing away from the painting, to a distance where the pigment and surface sculpturing blend together, the overwhelming beauty of the olive-colored Madonna emerges as if by magic.
This, along with an iridescent quality of slightly changing colors depending on the angle at which a person looks and the fact that the coloration in the image was determined to have no animal or mineral elements (synthetic colorings didnt exist in 1531), provide a lot of seemingly unanswerable questions.
Thats awesome.
2. People say its just a painting, yet the tilma has outlived them all, in time and in quality.
One of the first things skeptics say about the image is that it somehow has to be a forgery or a fraud, but every time an attempt has been made to replicate the image, the original never seems to fade, while its duplicates have deteriorated over a short time. Miguel Cabrera, an artist in the mid-18th Century who produced three of the best known copies (one for the archbishop, one for the Pope, one for himself for later copies) once wrote about the difficulty of recreating the image even on the best surfaces:
I believe that the most talented and careful painter, if he sets himself to copy this Sacred Image on a canvas of this poor quality, without using sizing, and attempting to imitate the four media employed, would at last after great and wearisome travail, admit that he had not succeeded. And this can be clearly verified in the numerous copies that have been made with the benefit of varnish, on the most carefully prepared canvases, and using only one medium, oil, which offers the greatest facility;
Dr. Adolfo Orozco, a researcher and physicist at the National University of Mexico, spoke in 2009 about the remarkable preservation of the tilma compared to its numerous copies. One copy created in 1789 was painted on a similar surface with the best techniques available at the time, then encased in glass and stored next to the tilma. It looked beautiful when painted, but not eight years passed before the hot & humid climate of Mexico caused the copy to be discarded due to faded colors and fraying, broken threads.
However, Dr. Orozco said, no scientific explanation is possible for the fact that, the original Tilma was exposed for approximately 116 years without any kind of protection, receiving all the infrared and ultraviolet radiation from the tens of thousands of candles near it and exposed to the humid and salty air around the temple.
Thats awesome.
3. The tilma has shown characteristics startlingly like a living human body.
This is where it gets real crazy. In 1979, when Dr. Callahan was analyzing the tilma using infrared technology, he apparently also discovered that the tilma maintains a constant temperature of 98.6 degrees Fahrenheit (36.6-37 deg. Celsius), the same as that of a living person.
When Dr. Carlos Fernandez de Castillo, a Mexican gynecologist, examined the tilma, he first noticed a four-petaled flower over what was Marys womb. The flower, to the Aztecs, was called the Nahui Ollin and was the symbol of the sun, as well as a symbol of plenitude. Upon further examination, Dr. Castillo concluded that the dimensions of Our Ladys body in the image were that of an expectant mother due quite soon (Dec. 9, the day of the unveiling, is barely two weeks from Christmas ).
Finally, one of the most common attributions and reported discoveries lie with the Virgins eyes in the image. When Dr. Jose Alte Tonsmann, a Peruvian ophthalmologist, conducted a study, one of his tests involved examining the eyes at 2,500 times magnification. With the images of her magnified eyes, the scientist was reportedly able to identify as many as 13 individuals in both eyes at different proportions, just as the human eye would reflect an image. It appeared to be a snapshot of the very moment Juan Diego unfurled his tilma before the archbishop.
Thats awesome.
4. It appears to be virtually indestructible.
Two distinct events have happened involving the tilma over the centuries, one occurring in 1785 and the other in 1921.
In 1785, a worker was cleaning the glass encasement of the image when he accidentally spilled 50% nitric acid solvent onto a large portion of the image itself. The image and the rest of the tilma, which should have been eaten away almost instantly by the spill, reportedly self-restored over the ensuing 30 days, and remains unscathed to this day aside from small stains on the parts not bearing the image.
In 1921, an anti-clerical activist hid a bomb containing 29 sticks of dynamite in a pot of roses and placed it before the image inside the Basilica at Guadalupe. When the bomb exploded, most everything from the marble altar rail & floor just feet away from the blast, to windows 150 meters away were broken yet the image and the glass surrounding it remained untouched. The only damage that occurred in close proximity to the tilma was a hefty brass crucifix, which was twisted and bent back by the blast.
I understand that the image of Lady of Guadalupe’s eyes on the Tilma reflect the image of Juan and the Bishop.