The boys in gren were ahead after just six minutes, Robbie Brady provided a sublime ball into the box, Nicolai Jorgensen flicked it up in the act of clearing, Shane Duffy was waiting to put the ball past Casper Schmeicel in the goal, the dream was alive and well.
O'Neill forewent his usual defensive outlook, particularly in a second half in which his side needed to score twice, but it only served to provide Eriksen enough time and space to cut the Irish to ribbons.
"After scoring one goal it was a big knock for Ireland, we got a lot of confidence and started to play good football", said Eriksen, who plays for Premier League side Tottenham Hotspur.
"We tried to play, and we got the openings, and we got the goals".
"I was surprised really because they played in a diamond - the midfield - with two forwards, and our centre-halves can handle two forwards, but that gave a lot of space in centre midfield for Eriksen."
"They locked him down in Parken very well and Eriksen was more or less out of the game but today he was fantastic".
Bella Hadid Gracefully Saved Gigi From Stacking It In Public-Again
Williams wore a black Versace mini-dress with gold embellishments. But little sis Bella came to the rescue. In fact, she makes new boundaries.
So effective is it as a motivational tool that Martin O'Neill could do worse than show it to his players before kick-off in the Aviva Stadium tonight; it has certainly done the trick for us in any case.
Eriksen himself labelled the game as a highlight of his entire life.
It'll be the 5th World Cup appearance for Denmark, last playing in 2010, not making it out of the group stage.
"We can not ignore that Eriksen delivered an incredible performance and probably played his best global game, in my opinion", Bendtner told reporters. "We've been fighting for so long to get there (to the World Cup) and of course now the two play-off games were very hard but with the result we got tonight we can be very pleased and it makes you very much looking forward to the World Cup".
Meanwhile, Eriksen was delighted to get three goals and help his nation reach the World Cup in Russian Federation.