The 'Temptation' will be to celebrate a treble that's not been won...yet.

However, Celtic are heading for their 17th trophy in the last seven seasons. A kind of 'Heaven 17'.

That silverware haul could be five trebles in the last seven years.

Yet somehow, it seems fitting that if Ange Postecoglou's side can reel off another domestic clean sweep, the team will enter the history books.

No club in football has ever won eight domestic trebles. Celtic can break the world against Inverness Caledonian Thistle at the national stadium on June 3 after seeing off Rangers again - for the fourth time this season.

Jota's headed goal from Daizen Maeda's cross proved to be the deciding factor at Hampden Park in the latest instalment of the Glasgow Derby. There is a poetic justice about it all for this particular Celtic side.

The hyperbole surrounding the current team under the Aussie have come thick and fast. Postecoglou's class of rip-roaring, free-scoring, never-boring Glasgow Celtic have been likened and compared to the Lisbon Lions, Tommy Burns, Martin O'Neill and Brendan Rodgers' teams. How the Hoops faithful love a swashbuckling Celtic side.

Celtic may not have made their way into the final in a glamorous fashion but Postecoglou has stamped his DNA all over this team. Jota's winning goal typified that and then some.

Nicolas Raskin stopped, Borna Barisic stopped and James Tavernier stopped. Celtic never stop.

It happens too often to become a boring old football cliche. Rinse and repeat. Yet there are some out there who are still not getting the message. That's their problem to deal with moving forward.

As Postecoglou said: "It’s what we do. It shouldn’t surprise anyone. You can talk about mistakes, but we instigate mistakes because the boys are relentless in their pressure. They never switch off and then we have the quality to capitalise.

READ MORE:  Jota's header sends Celtic into a Hampden date with destiny

"We’re alert when we need to be and when the ball comes across, our winger is where he should be.

"That’s not by accident. We’ve been doing those things consistently and again, it’s a credit to the group that they maintain their discipline even in a game like today where the emotions are running high."

Cameron Carter-Vickers is going in for knee surgery. His season is now over. He hauled his huge frame all over that Hampden turf as if his life depended upon it. In short, the American international never stopped. He was aided and abetted by the cool Swede in defence - Carl Starfelt - and between them, they kept Rangers at bay as well preserving their remarkable record of only having lost one domestic game when partnered together. 

You need to go some to beat this Celtic team even when they don't hit the high bar that Postecoglou has raised to an incredible level. They managed to see this one out against a Rangers side who came on strong but were repelled. That in itself pleased the manager greatly.

"I’m really proud of the group," he smiled. "We had to earn it today, as you should in a semi-final. We knew what was at stake. Rangers, it was their last opportunity to gain some success this season, so we knew what was going to happen.

"It was going to require all facets to our game and I thought we played our football when we needed, we defended really strongly when we needed to and throughout it all, it was underpinned by an unbelievable work ethic, which this group of players has.

"They found a way to overcome the challenge again, so credit to them. You have to earn these things and I was really pleased that this team showed it can be resilient as well as play the football that we know we can."

It was the exorcising of a ghost as well in the process as Celtic laid to rest last season's defeat at the same stage of the competition with a gutsy display that showed the manager that his side are no longer a work in progress and have evolved.

There is much more development and evolution to come - believe me there is.

As Postecoglou said: "The whole group had to dig in. Twelve months ago when we lost here it was another tight game. I thought last year Rangers were a very good team and they had that resilience in them and that's why they got to a European final. 

READ MORE: Cameron Carter-Vickers Celtic season over, confirms Ange Postecoglou

"This team did what they needed to do to get the job done on the day. That has been our evolution as a team this season."

June 3 can wait for now. They will be wrapping green and white ribbons on a second consecutive Scottish Premiership trophy soon enough.

The celebrations might even come at Ibrox with no away fans in attendance should Celtic fail to see off Hearts at Tynecastle next week. That would be the final ignominy in a total write-off of a campaign for struggling Rangers.

Celtic are marching on to an eighth domestic treble and a new football record in the process. They have one more game against their city rivals to come away from unscathed to complete an unbeaten season against them.

Four wins and a draw in the episodes so far. 17 trophies in seven seasons. Now that's what domination looks like. It's a small wonder that Celtic and their supporters are in a 'Heaven 17' state.

Yes, you don't need to be a new or an old romantic to know that the Parkhead are lording it over their city rivals at the minute.

You could say one of them is in the Penthouse the other is on the Pavement.