Gregor Townsend described Scotland's 43-21 defeat to Ireland as "a reminder and a lesson" after dreams of a first Triple Crown in 36 years were dashed in Dublin.
The Scots began 'Super Saturday' seeking overdue silverware and the chance to stay in contention for a maiden Guinness Six Nations title.
But Ireland deservedly continued their remarkable decade-long dominance of the fixture with a 12th consecutive victory, a run which spans Townsend's entire tenure.
Scotland arrived at Aviva Stadium brimming with belief after setting up a three-way title tussle with last weekend's stunning 50-40 win over France, having initially bounced back from a dismal opening defeat to Italy with successes against England and Wales.
Asked if it had been a positive tournament overall, head coach Townsend, who had no complaints about the round-five result, replied: "Yeah, absolutely. The performances we've delivered, especially those three victories, is some of the best rugby that I've seen this team play.
"Today, it's a reminder and a lesson. The reminder is this is what we need to do to play at our best and when we do that we can (compete against) one of the best teams in the world.
"Ireland are ranked third in the world, like England and France were.
"We've gone up against some of the best teams in the world and in that period, we scored points, we put them under pressure.
"But the lesson is it has to be for a longer period, we're not saying 80 minutes, no one can play 80 minutes where they dominate possession. But we've got to be better when we do have those opportunities.
"(It's) just another game for us to know what works and what we have to lean into more, double down on more. We have to keep at our game."
Ireland full-back Jamie Osborne and Scotland wing Darcy Graham each claimed their fourth tries of the tournament during a frenetic start before scores from Dan Sheehan and Robert Baloucoune helped the hosts into a 19-7 half-time lead.
Scotland fly-half Finn Russell and co-captain Rory Darge crossed in the second period, either side of a finish from Ireland replacement Darragh Murray, but hope of a famous comeback was extinguished by a late double from Tommy O'Brien.
Asked why his team were off the pace in the opening period when there was so much at stake, Townsend said: "That's sport, that's rugby. If you want a perfect performance every week then you're living in fantasy land.
"Every team is going to have moments in the game where they don't do as well as the opposition, every team's going to have a performance, especially in the Six Nations, where they don't achieve their highest level of rugby.
"The positive was that we regrouped in the second half, we played some excellent rugby but it wasn't enough to win.
"They (Ireland) played well - they always seem to play well against us. We needed to be better today."
