Hibs' victory over Celtic last Saturday did more than secure three points. It sent shockwaves through Scottish football.
But perhaps it should not have.
Recent performances had hinted this was coming. Results have improved, confidence has grown, and there has been a sharper edge about Hibs in recent weeks. This was not a smash and grab, it was the continuation of an upward curve.
Wins of this nature, away to the current champions in Glasgow, can redefine a season. They energise a dressing room, reengage a support and shift belief from quiet optimism to something more tangible. For a side chasing European football, it may prove a pivotal afternoon.
There was further encouragement in the impact of the January arrivals.
Felix Passlack opened the scoring, ghosting in at the back post to meet Nicky Cadden's cross with a composed diving header - the sort of instinctive movement that speaks to confidence and attacking intent.
The winner, struck with authority by Kai Andrews, underlined his quality.
If Hibs are to secure a European berth next season, this performance must now become the standard rather than the exception.
With five matches remaining before the split, the equation is straightforward: 15 points available, and as many of them as possible required.
Next comes a trip to a rejuvenated Dundee side. After a difficult start under new manager Steven Pressley, they have found rhythm and identity. A 14-point cushion above bottom spot tells its own story.
While they have only one win in their past five, Dundee are playing with greater freedom, moving the ball with confidence and feeding off a home support that has rediscovered its voice.
There is also the psychological element to consider. With no fixture next weekend, the last thing Hibs want is to head into a break on the back of defeat. A loss lingers; a victory fuels anticipation.
For Hibs, this is the challenge now. The win over Celtic has raised expectation externally and internally. The next step is to prove it was not a standalone moment but part of a sustained push.