It’s not the return of the Dáil today after a two-month summer break.
Or a victory in his personally promoted campaign to abolish the Seanad.
Nor is it the prospect of emerging from the bailout later this year and celebrating his political success.
This is something he has waited much longer for. A lifetime, in fact, which in his case is 62 years. And he is hopeful it will happen in Croke Park on Sunday.
“I would say to the Dubs that our people have been leaving Seattle, San Francisco and Sydney to come back, because we are going to bring Sam home.”
The last time Mayo won the All-Ireland was in 1951 — the same year the Taoiseach was born.
His own father, Henry, was an all-Ireland winner in 1936 — one of the three times it took home the victory.
This, Mr Kenny says, is his lucky year — “13 is my lucky number” — and he hopes some of his good fortune will rub off on the team.
“The Dub supporters are brilliant,” he said, with a keen eye on the enemy — Jobs Minister and Dublin TD, Richard Bruton, by his side.
“They are strong and fast, they are well conditioned and they’re well capable of winning,” Mr Kenny predicted.
But he said: “I think our team with the green and red are in a different space this year.
“I think the advantage they have is that they lost last year, they have learnt that lesson.”
Mr Kenny has invited the three remaining members of the 1951 team to join him in Croke Park on Sunday.
“I hope it’s an outstanding game,” he said.
“Naturally I hope Mayo win.
“Good luck to them both.
“I hope that after 62 years we can have our little emotional moment of success.”