The thread of Ariadne
Where the name comes from, and why we kept it.
So Theseus must face the monster or die. In Apollodorus we find the story of Ariadne’s thread. Theseus arrives on Crete, and Ariadne, the daughter of Minos, falls in love with him. Later we learn that this love, too, is doomed — by the curse of Aphrodite.
“On the advice of Daedalus she gave Theseus, as he entered the labyrinth, a thread. Theseus tied it to the door and drew it after him as he went deeper in. Finding the Minotaur in the furthest part of the labyrinth, he set upon him with his fists…”
The fight is the part everyone remembers. The thread is the part that mattered: without it, winning inside the labyrinth still means never coming out. That is the idea we build on — leave a way back from everything you make.