The pattern is older than the name for it, and Odysseus is the template. Departure, the call across the sea to Troy. Ordeal, ten years of war and ten years of monsters, gods, and bad weather. Descent, the literal katabasis to the dead, where the hero learns what the living cannot teach him. Return, the long disguised reentry into the world he left. Restoration, the reckoning that puts the house back in his hand. [SPOILER: What makes Odysseus’s version harder than every imitation is that the return is not the reward. He comes home to a hall full of armed men, a wife who refuses to recognize him until he proves it on her terms, a son who is a stranger, a father who has gone to seed in a vineyard, and a dog who dies at his feet. He has to fight for his own house room by room. He has to sit in rags while people he loves describe him as dead. He has to kill a hundred men in his own dining hall and watch the blood soak into the air of the rooms he was raised in. And then the fathers of the dead come for him and the cycle threatens to start again, and only a god can stop it. Most hero stories end with the hero arriving. This one ends with the hero understanding that arriving was only the start of the work. The journey was easier than the homecoming. Tiresias even tells him, in the underworld, that there is one more journey after this one, an oar carried so far inland a stranger will not know what it is. The arc does not close. It just finds a quieter shape.]
The Hero's Journey Arc
Departure, ordeal, descent, return. The shape every later hero story copies. Odysseus is the original, and his version is harder than the imitations.