On certain clear, calm days, anyone looking from the Calabrian coast towards Sicily may witness an extraordinary sight: the opposite shore seems to draw closer, houses and hills stretch upwards, towers, palaces and colonnades appear suspended over the water and then dissolve. This is the Fata Morgana, an optical phenomenon that has given its name to all mirages of this kind and that carries with it a legend of medieval origin.
The optical phenomenon
The Fata Morgana is a complex superior mirage. It forms when air masses at different temperatures settle in layers above the sea surface, in particular when a layer of warmer air lies over a colder layer in contact with the water. Under these conditions light rays are bent, and the images of distant objects appear distorted, stretched vertically, sometimes doubled or inverted.
The Strait of Messina offers favourable conditions: a relatively narrow stretch of sea, high coasts on both sides, summer days with still air. This is why the phenomenon has been observed and described here for centuries, so much so that the local name has become an international scientific term.
How it appears
Traditional descriptions speak of three main forms:
- on the sea, when the images appear reflected on the surface of the water;
- in the air, when they seem suspended above the horizon;
- as a fantastic city, when the distortion turns houses and rocks into architectures of towers and columns.
This third form is the one that most struck the imagination and fed the legend.
Who Morgan is
The name comes from the Matter of Britain, the cycle of legends tied to King Arthur. Morgan, the king's sister or half-sister depending on the version, is a powerful fairy, skilled in magic and healing, lady of the isle of Avalon, where Arthur is taken after the last battle.
How did a British fairy reach the Strait of Messina? The most likely answer is historical: the Normans, who conquered southern Italy and Sicily between the eleventh and twelfth centuries, brought with them the narrative heritage of the Frankish and Anglo-Norman world. Arthurian stories thus took root in the Mediterranean and attached themselves to local places and phenomena.
The legend of Roger
One of the most often told legends links the fairy to the Norman conquest. It is said that a Norman leader, identified with Count Roger, was on the Calabrian coast, eager to cross to Sicily but without ships. Morgan then appeared to him and offered to bring the island closer by her magic, showing it to him within arm's reach.
The leader refused: he would conquer Sicily by his own strength, not by a spell. Morgan then threw some stones into the sea and the island appeared very close, with its cities and mountains, before returning to its place. The tale gives the mirage a moral meaning: it is the temptation of a victory without effort, refused by the hero.
King Arthur in Etna
The link between the Arthurian world and Sicily does not stop at the Strait. In the thirteenth century Gervase of Tilbury, in his work Otia imperialia, reports a tradition according to which King Arthur dwells inside Etna, in a marvellous palace, where his wounds reopen every year. He tells of a servant who, chasing a runaway horse up the volcano, is said to have met the king.
Etna, also called Mongibello, thus becomes a kind of Mediterranean Avalon: a place on the border between life and death, where the sleeping king waits.
Science and legend together
The Fata Morgana is a rare example in which the scientific and legendary explanations do not exclude each other but coexist. Atmospheric optics explains perfectly how the images form; the legend explains what those images meant to those who saw them for centuries without knowing their cause.
| Level | What it explains |
|---|---|
| Physical | Layers of air at different temperatures bending light |
| Historical | The arrival of the Arthurian matter with the Normans |
| Narrative | The hero's temptation and refusal of an easy victory |
| Symbolic | The border between visible and invisible, real and enchanted |
In short
- The Fata Morgana is a superior mirage observed over the Strait of Messina.
- It forms when layers of air at different temperatures bend light rays.
- The name comes from the fairy Morgan of the Arthurian cycle, who reached the South with the Normans.
- A legend tells of Count Roger's refusal to conquer Sicily by magic.
- Gervase of Tilbury places King Arthur inside Etna.
