It is always the same when we come to this moment of the Olympic Games, this flaring of hope that something unflawed and unforgettable is in the air and it doesn’t really matter where it finds us, whether it is in some foreign place or, as on a rain-smeared evening such as tonight, in our hearts and our home.
This is the time when the fear and the agonising stops and when the blood races with the anticipation of great deeds. We cannot know yet what these Olympics will bring us, not in the full sweep of the greatest sports spectacle on earth, but here you could feel the weight of all the possibilities — and the yearning of a people, somewhat battered in recent years, let us be honest, that this might just be a time to make another mark.
These, certainly, where the stirrings among the crowd of 62,000 when the Red Arrows pierced the dusk and Bradley Wiggins, Britain's first winner of the epic Tour de France, stood in front of the Olympic bell in his yellow jersey and raised his arms to the moist and darkening sky.
There was a superb energy in that moment, a rippling of pride, and as Danny Boyle's £27m Opening Ceremony show began to unfold with beautiful pace and superb imagery, as a pastoral scene turned into a broiling evocation of the Industrial Revolution, it was as though they might be a new and original Olympics.
It is true that there is something of this about all Olympic Games, even one as bad as Atlanta in 1996, when the traditional compliment of the president of the International Olympic Committee that they were great Games was pointedly withdrawn, because in Georgia they did have Muhammad Ali igniting the cauldron after being picked out by a spotlight that made the heart of the world stand still for a moment. Atlanta also had Michael Johnson running in his golden shoes like some ebony Greek god and Carl Lewis winning yet another gold medal.
What the Olympics have, in their formal, cyclical way, is renewal, a wiping-away of the past and a huge investment not so much in the future but the moment. There has been much argument over legacy, of the value of a £9bn-plus investment in circus in these straitened times, but you had to be a brave and resilient polemicist last night to argue this points too strenuously as the excitement began to swell.
This was especially so when it became clear that Boyle, the maker of Slumdog Millionaire, had won his own gold medal on a fraction of the budget that enabled the blockbusting spectacle of Beijing.
The Queen, having consented to a showbiz invitation from James Bond to take a helicopter ride, arrived to thunderous applause, to be greeted by Jacques Rogge, the Olympic president, who had earlier pushed a maybe fragile national pride up another notch by declaring that Britain had virtually invented modern sport.
For the moment, certainly, it had brought a blast of pleasure and exhilaration which you knew would soon enough be powerfully augmented by the arrival of so many icons from the sports fields of the British past.
As the night wore on, speculation on the identity of the man who would ignite London's Olympic cauldron became ever more intense.
We knew that David Beckham, whose celebrity if not significant connection with the Olympics had been used so freely in the bidding victory over the favourites, Paris, would make some kind of cameo appearance but finally, seven young athletes of the future were put in charge of the flame by Sir Steve Redgrave, who was also joined in the ceremonials by Daley Thompson, double gold winner Dame Kelly Holmes, long jumper Lynn Davies, swimmer Duncan Goodhew, pentathlon winner Mary Peters and sailor Shirley Robertson.
The seven young torchbearers then ignited a tiny single flame, triggering the ignition of 204 copper petals carried into the stadium by the athletes. The long stems of the cauldron then gently rose towards each other and converged to form a single "Flame of Unity".
This was a charge of anticipation which will be increased soon enough with the appearance of the titans of today, the men who bestride modern sport and who will be at centre stage of these Olympics.
Usain Bolt, who assuaged growing concerns about his fitness to run in the great race of these Games, the 100m dash he dominated so sensationally in Beijing four years ago, carried the flag for Jamaica.
Jamaica had Bolt, America had Michael Phelps, the tall American swimmer with the huge wing span, who by Tuesday night might well have the greatest haul of gold medals, 21 of them, in Olympic history.
This is the magnetism of the Olympics – and such is the prize Lord Coe, the winner of two Olympic gold medals at the classic distance of 1,500m in Moscow and Los Angeles, stole from beneath the noses of Paris seven years ago in Singapore. The promise was of an inspiration to the youth of the world, and new generations of young Britons long starved of proper sports facilities, and no doubt there will be many who will seek to hold him to that in the future.
But that is the future, something that seemed quite remote in the brilliance and light which came to a neglected, some would say abandoned, corner of east London last night.
The show we were promised, as always, is one of compelling spectacle – and last night it was easy to feel the thrill that every four years comes to new ground – or in last night's case revisits old terrain.
We do not know yet how well Great Britain will do, whether the man who carried the flag, Sir Chris Hoy, will build on his three gold medals won in Beijing or whether Wiggins will reproduce the glory he found so recently in France. The roll call of heroes has not yet begun and there can be no certainty that it will include even the men who caught the eye so strongly last night, the prodigious Phelps, the extraordinary Bolt.
There are so many other men and women eager to find their moment this English summer and last night they flooded into the light. They were received with something more than mere respect. They were saluted as those who for the next two weeks will explain why it is that the Olympics simply march on and on.