# crossing the Styx

idiom · CEFR C1

Source: https://englishreference.com/idiom/crossing-the-styx
Updated: 2026-07-29

## Meaning

Passing a point of no return, especially into death or an irreversible change.

## Examples

- Signing the papers felt like crossing the Styx.
- Once she published the exposé, she knew there was no going back — she had crossed the Styx and would never work in that industry again.
- The moment the two nations formally severed relations, they were crossing the Styx together, abandoning decades of alliance for a rupture that neither side could later hope to undo.

## Origin

At the border of the living world and the land of the dead ran the River Styx, a black, slow, cold water that wound seven times around the underworld and could be crossed only in one direction. No bridge spanned it. No swimmer dared it. There was only the ferry. The ferryman was Charon, gaunt and unsmiling, and he poled his boat back and forth across the dark current all day and all night. He would take no soul across for free. Into the mouth of every dead person the Greeks placed a small coin, so the newly departed could pay their fare, and those who came to the bank with no coin were left to wander the shore for a hundred years. For the shades who paid, Charon took up his oar, and the little boat slid out onto the black water. On the far bank waited the endless grey country of the dead, and once a soul stepped off onto that shore, there was no return trip. The oar dipped, the current carried them over, and the world of the living closed behind them for good. For the Greeks the crossing became the very image of the final threshold, the one journey every mortal must one day make and the one no one comes back from to describe. So crossing the Styx means passing a point of no return: stepping over the line, into death or into any change so final that the shore you have left can never be reached again.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.