BBC Scotland's chief sports writerPublished21 minutes agoAndy Robertson says it gives him "goosebumps" any time he thinks about it.
Friday at Hampden, North Macedonia the visitors, a 102nd cap to be won and, when it is, he'll be level in the pantheon with Kenny Dalglish, the football man he loves more than any other.
On Monday in St Gallen, Switzerland - all being well - Robertson will break the great man's record, a mark that has stood for 40 years.
The Tottenham left-back is sitting in the boardroom at Queen's Park in the shadow of Hampden with a phone in his hand and eyes fixed on his 19-year-old self coming off the bench in Warsaw on 5 March, 2014.
"Nervous, excited, living the dream, not knowing what road I was on," he smiles as he looks at the moment he takes his first touch in international football.
"As I was going on, Gordon [Strachan, Scotland manager] said to me, 'remember why you're here, play like you play at Dundee United, don't play safe'. The first ball, when it came to me, I just drove forward about 30, 40 yards.
"I had pretty much every emotion that day. My mum and dad were there. My brother. My aunt and uncle. My other uncle. There's a picture of me and my brother [Stephen] at the airport after the game. He had a big Poland hat on and a half-and-half scarf. He was well oiled by that point."
Nations League: Scotland v North Macedonia
Watch on iPlayerListen on Sounds'I've never actually been confident'Robertson says he'd have laughed out loud had you told him then what lay ahead of him - two Premier Leagues, two League Cups, an FA Cup, a Champions League, a Super Cup, a Club World Cup, soon-to-be the most capped male Scottish players in history and, by a mile, the one with the most games as captain of the men's team.
"I've never actually been confident," he says, which is a surprise admission given everything he's done.
Maybe what he means is that he always had a quiet belief in his own ability but found that constantly questioning himself was who he was and who maybe who he still is.
"I've always doubted myself and that's always got the best out of me. I've always tried to prove people wrong and prove myself wrong. The one thing I didn't do was look too far ahead. I always just lived in the here and now and that's served me well."
In the room where he's talking there are a dozen normal chairs and away to the side, detached from the rest, is an elaborate seat. A high-backed, ornate, somewhat regal affair.
It looks fit for a king and, given the history Robertson's about to make, maybe he should plonk himself in it. And that brings us back to the man whose record he's about to match and surpass.
"There are normal seats but there's one throne and Kenny Dalglish should be sat on it," he says. "Friday night's not about me. Friday night's about the greatest player of all time in our country, and for me, that will always be Kenny.
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You've done Liverpool and Scotland proud - Kenny Dalglish on Andy Robertson's career
"He's had this record for so long. He deserves it. If he played in a different era, he would probably have played a number of games that wouldn't have been able to be caught.
"Sometimes - not as a criticism - as a country we're maybe not good at recognising how good people we've got are. For me, he's the best player to ever play with Scotland and arguably Britain.
"We have to appreciate that man because I certainly do, my family certainly do and, I think on Friday, I'll have him at the front of my mind, the back of my mind and I'm not really bothered about myself."
It's a lovely thing, that. Robertson, about to draw level with Dalglish, is only thinking about Dalglish.
The depth of feeling comes tumbling out of him when he starts telling stories about what King Kenny means to his family and how he seemingly created a miracle by momentarily curing Robertson's beloved late grandfather's hearing.
"I always remember my agent talking to me about the first time he met Liverpool," Robertson says of a time when he was still with Hull but about to move to Anfield.
"He met the chief scout and sporting director and all of a sudden Kenny 'accidentally' walked into the room. It was 100% planned, I know it was planned.
'It means everything' - numbers behind Robertson's 100-cap Scotland career
"My dad, in particular, has met people in football through me, but I've never seen him being starstruck by anyone apart from Kenny.
"I always remember, we'd just beaten Barcelona 4-0 [in May, 2019] to qualify for my second Champions League final. My grandad was at the game and I managed to grab Kenny afterwards. I says, 'Kenny, would you mind coming in to see my grandad and my uncle? They would love to see you'.
"Bear in mind his grandson's just qualified for another Champions League final and he basically barged me out of the way and shook Kenny's hand.
"My grandad had hearing aids. He couldn't really hear much of us but he heard everything Kenny said, so it did open a lot of questions in the family as to how bad the ear problem was with my grandad. He's no longer with us but to see how happy he was… Kenny was his hero."
When Robertson moved to Liverpool for the hilariously small sum of £8m in 2017, his wife, Rachel, was expecting their first child. The Dalglishes, he says, helped so much that he could hardly ever repay them for their support and friendship.
On the pitch and off, the transfer to Liverpool as a 23-year-old was the greatest move he could have possibly made.
In reflective mood, on the cusp of Scottish football history, Robertson talks about his mother and father and his brother. "They're as proud of my brother as they are of me," he said. "The exact same, whatever achievements we have. But I think they're more proud of the men we've become. That was always most important for me.
"Anyone who knows me, my family, my friends, I always want them to like the person first, the footballer second. Anyone that only wants to know me as the footballer, then I don't let them get too close but if they want to know me as the person first and foremost, then they're the people that are really in my close circle.
"I've still got the same friends I went to nursery with at three years old. Three of my best friends."
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"There'll be a hundred people going, 'I could have been that'. Football has a lot to do with ability and mentality, but also you need a little bit of luck as well.
"It's about trying to protect the 15, 16, 17-year-olds just now and we all have a duty to help with that. We always want the young players to come in and I just love their energy, I love how excited they are. Findlay Curtis just bounces about all the time.
"These are the kids that are going to bring the country forward. They're all sitting at the other end of the table playing games we don't even know about but it's great for us to sit back and go, 'OK, we're part of this squad, but when we leave, then hopefully Scotland will be in a good place."
To Friday, then. A record-equaller but, to Robertson, this is no nostalgia trip. This is a game Scotland desperately want - and need - to win.
He says they were a yard off it in all areas last time out against Slovenia. "Unacceptable," he recalled. "We didn't give our fans anything to shout about."
He departs with fighting words about the desire within the squad to make amends. Out the door, down the corridor and onwards into history. Seconds later, he returns. "Forgot my washbag," he laughed. "Bet Kenny didn't have one of these!"
Glasgow, Liverpool, Scotland - the ties that bind.
