The Queen's historic visit to Ireland was hailed as a spectacular diplomatic triumph tonight.
As she prepared to end her visit in Cork tomorrow, politicians on all sides in Dublin said the trip signalled the start of an exciting new era in Anglo-Irish relations.
British Prime Minister David Cameron, who had talks with the Taoiseach Enda Kenny, said the visit and the Queen's momentous speech in Dublin Castle had struck a chord with people in the Republic.
"What she said about things that could have been done differently or not been done at all, I think will have spoken volumes to people in Ireland," Mr Cameron said.
The decision to lay wreaths in memory of the men and women who fought for Irish independence and the 49,000 Irish soldiers killed in the First World War was welcomed by Buckingham Palace.
A palace spokeswoman said the Queen and Duke of Edinburgh have been delighted by the welcome they have received.
"The mood is very buoyant in the household. The visit will be in the Queen's mind for a very long time when she returns home," she said.
"Everybody in the household has been overwhelmed by the warmth of the welcome. It's been an extraordinary visit."
Taoiseach Enda Kenny said the Queen's contribution was remarkable and that she surprised Ireland by sympathising with all those who had suffered in conflict between the two nations.
He said: "I think people were very taken by the extent of her words and the clarity and ringing tone in which she said them."
A Department of Foreign Affairs insider said the trip had portrayed the positive side of Ireland to the world.
"We are very pleased with what's happened, we are very pleased with how the visit has gone, an immense amount of work has been put into making sure that the visit would be a success," he said.
The Queen also expressed her sadness in a personal message to President Mary McAleese at the death of former Taoiseach Garret FitzGerald, further cementing the newly forged ties.
Even Sinn Féin grudgingly acknowledged the impact that the Queen's visit had had. The Deputy First Minister Martin McGuinness said the speeches by the royal and President Mary McAleese were thought provoking.
Despite the ringing endorsements, gardaí remain on full alert. Three suspected Real IRA members were arrested at two separate locations between 15km and 30km from the National Stud in Co Kildare, which the Queen had visited.
Detectives acting on intelligence were worried dissident republicans may have been planning to disrupt the royal cavalcade on its route to the popular attraction.
One was arrested shortly before 2am after he was stopped while driving a car in the village of Clane. The other two were detained during follow-up searches at private houses in Robertstown, also in Co Kildare.
The Queen indulged her passion for all things equestrian during a visit to the Irish National Stud as two intense days of powerful political statements, pomp and ceremony gave way to a more relaxed itinerary.
The passionate horse breeder was in her element in Tully, Co Kildare, surrounded by thoroughbreds, jockeys and horse owners.
Simon Coveney, Ireland's minister for agriculture and food, who joined the Queen for the visit, said: "I think there are two phases to the visit. The first two days were very much about the emotive history of the two islands, reconciliation and moving forward and respecting the history. I think the Queen did that in an extraordinarily generous way.
"I think the second half of this visit is I hope more relaxing and she's very interested in racing and horse breeding.
"Horse racing is part of what it means to be Irish and an important industry for us here."
She was then treated to an evening's celebration of all things Irish hosted by the British Embassy with acts including X-Factor star Mary Byrne, Westlife, the Chieftains and Riverdance.
Fashion, which the Queen has been hugely praised for this week, will also take centre stage with shows from designers such as Victoria Beckham and John Rocha.
The highlights of the trip have undoubtedly been the Queen's speech and also the formal recognition and reconciliation in Dublin's Garden of Remembrance and the Islandbridge National War Memorial.
Last night, the Queen, whose cousin Lord Mountbatten was blown up by the IRA off the County Sligo coast in 1979, rose to her feet in Dublin Castle to give an address Mr Cameron said had resonated with the public.
Mr Cameron said the state visit was the right thing to do, adding: "As so often, her majesty has been able to put things and say things and do things in a way that massively strengthens the relationship.
"The state visit's a great success and it's wonderful to come and spend a bit of time here too."
The week has been billed as heralding a new chapter of partnership and friendship between Britain and Ireland.