Time had no meaning in the shades of dreams. Athena had nothing to mark its passing, and found that she did not particularly care. The raw ache and rage inside of her found expression in various phantasms, and she fought them until it cooled - until rest stole over her like a mist and shelter from a pounding sun.
Morpheus would visit, occasionally, and they did not talk much. He passed on the news of her brother's capture, and she almost asked him to let her wake... but he'd also told her of her father's return. And his refusal to act. And of Caerus' safety.
This left Athena trapped - should she outstep the king for her brother's freedom? Isn't that exactly what she had meant to avoid? This new world should have been bereft of such political necessities, but they were just as excruciatingly vital as they had been a thousand years ago - if hollow as a hermit shell.
She decided she would maintain her original position - but it cost her, and drove her deeper into the realm of her subconsciousness. But there came a point when she had enough. And at that point she decided to seek out Morpheus.
One did not need to move in dreams for things to become so. As soon as she had made the decision, Morpheus allowed her to find him - and such a place! Open gates, glorious decay...