Laois goalkeeper Enda Rowland said a big scalp was a long time coming for the county.
Eddie Brennan's team produced the shock of the championship, and a landmark result for the ages, with a two-point win over Dublin in O'Moore Park to qualify for the All-Ireland quarter-final against Tipperary.
Rowland pulled off a superb save from Danny Sutcliffe at a crucial stage early in the second half, and in the final seconds stood crouched on the line with five others as Sean Moran hovered over a 21 metre free to level the game.
"That big day is coming a long time for Laois hurling," Rowland told RTÉ Sunday Sport after the game.
"There's a lot of good lads have come and gone and they haven't had days like that.
"We made a promise to ourselves during the week that we were going to give it everything today. Everyone emptied the tanks and that's all you can ask."
The goalkeeper paid tribute to Eddie Brennan who, in his first season as manager, achieved his primary goal of winning the Joe McDonagh Cup in his first season and has now orchestrated a historic victory.
"Who better to learn off than Eddie Brennan? What he's won and done with Kilkenny, the players he's hurled with. He came in and instilled belief in us and a system of play. And Niall Corcoran and Tommy Fitzgerald and Fran Dowling, you have to give all of them credit. They brought that belief into us and that workrate and our skills came into it then.
"After the Galway game in the league, we weren't happy with ourselves. We went back and we slowly got the performance coming back together.
"I think we peaked at the right time. We were ready for championship. We could have won some of the games in the Joe Mc by a lot more but you can't beat winning and a bit of momentum.
"It's not often you have these days so we're going to enjoy this one and get ready for Tipp next week."