This cantata is, as far as I know, the first composition in which alchemical symbols are the basis of the text. The mystery of death and resurrection is illustrated with the use of five classical mythological animals. Celtic knots In the Middle Ages, the monastic communities of the British Isles created superbly illuminated manuscripts using an artwork based on knots. Gospels are among the most beautiful examples of this technique. This self-similarity reminds us of the alchemical principle stating that the microcosm is an image of the macrocosm.
Fractals are often the result of an iterative process.
It appears in black on the figure. For every point outside M , the sequence tends to infinity. These points are colored according to the number of iterations required to reach a given value. The figure may be magnified to give very complex and beautiful pictures. The Mandelbrot set Fractals have proved to be good mathematical models for a wide variety of natural phenomena, such as the shape of mountains, the diffusion of chemicals, the structure of lungs or the distribution of galaxies.