Pablo Azzam Miftode, IES Licenciado Francisco Cascales, 1o Bach. E
I believe that it's the myth of Theseus and the Minotaur.
Minos was king in Crete. In order to confirm his right to rule, rather than any of his brothers, he prayed Poseidon (which is why he appears near Crete) send him a bull as a sign.
Later, Poseidon had Aphrodite curse Pasiphaë, the wife of Minos, causing her to fall in love with the bull of Poseidon and gave birth to the Minotaur. Poseidon passed on his rage to the bull, causing him to lay waste to the land.
Theseus announced to King Minos that he was going to kill the Monster, despite not knowing the way out the Labyrinth.
Theseus met Princess Ariadne (which might be why the goat was shown), who decided to help Theseus. She gave him a thread (which is why he ¨won to a thread¨) and told him to unravel it as he would penetrate deeper in.