One moment made the difference for Celtic at Hampden on Saturday but, throughout the season, they have shown once again that their mentality is a key element in their domestic success.
The Scottish Cup final was a contest that had very, very little between the teams.
It was a game in which Rangers performed well, doing everything I imagine they would have hoped for in stopping their rivals’ run.
But this great moment still fell to Celtic. A shot, a rebound and Adam Idah caught it.
Now, after a league and cup double, Brendan Rodgers can’t sit still – and he won’t.
‘Rangers improved but history will show Celtic won’
Saturday’s game reflected my memories of this derby as a young player and young fan.
Typically, neither team dominates for 90 minutes. There are spells in which you will have a period of ascendance and vice versa. This is the Old Firm.
You always know as a player that the other side is going to have a moment. That would have been on the minds of the Rangers players when Abdallah Sima’s goal was disallowed.
Even so, Philippe Clement’s team prevented Celtic from being fluent in the attacking phases.
This meant there were no clear-cut opportunities for either side, but history will show yet another Celtic victory.
Throughout the league campaign you saw their mentality shine in high-pressure moments. Now this group can enjoy another incredible day.
‘Idah takes the burden off Kyogo’
Idah, the game winner, had a huge impact on this Celtic team.
Comparisons will be made with Kyogo Furuhashi, whose movement is better than anyone else in this country, but Idah brings a completely different profile.
It allows you to go further. If it’s a more physical game, he brings that too.
But what he shares with Kyogo is a sense of goal and you saw that again at Hampden.
Celtic have relied heavily on Kyogo for long periods this season and last, but Idah has taken that burden off him and offered something different.
With his loan at Norwich City set to expire, it will be interesting to see what steps Celtic take this summer.
‘Rodgers and Celtic can’t stand still’
The manager will know what he needs to do with Idah – and he will know what else needs to be done this summer.
The thing about Celtic and Rangers is you can never sit still. You always know that your rival is trying to take the league from you or you are trying to keep it.
During my time as Belgium’s assistant coach, I saw Clement build a serious team at Club Bruges. The Rangers have a good manager.
This weekend is not the time for that, Celtic can celebrate, but they know they need to strengthen to improve in Europe and continue their domestic dominance.
I’m sure the team we watched on Saturday will be stronger next season – and they have a brilliant coach to guide them.
Rodgers did an excellent job at Leicester. He did a great job at Celtic the first time he was here. Same in Liverpool too.
He’s not going to sit still, coaches at this level aren’t, so I’m looking forward to seeing what the summer brings.
Former Celtic striker Shaun Maloney was speaking to BBC Scotland’s Nick McPheat
