Our symbol represents an episode of the Homer’s epic “Odysseus”.
Odysseus lands on the island of the Cyclopes during his journey home from the Trojan War and he enters a cave filled with provisions with some of his men.
When the giant Polyphemus returns home with his flocks, he blocks the entrance with a great stone and eats two of the men. Next morning, the giant kills and eats two more men and he leaves the cave to graze his sheep. After the giant returns in the evening, Odysseus offers Polyphemus a cup of strong wine.
Drunk and unwary, the giant falls into a drunken sleep. Odysseus had meanwhile sharpened a wooden stake in the fire and stabs Polyphemus’s eye, so he can escape with the survived men and continue his journey home.