"Defeat is extremely hard to take after you have put so much into a game like that. But it is winner takes all in a semi-final," admitted O'Gara..
"This is an unbelievable competition and it was an incredible atmosphere. It was a fantastic occasion to be a part of, but the only reason we play is to win.
"There was some serious resilience from Munster and I am proud to be a part of the team. Someone said to me earlier in the week that Clermont would beat the French team and it was Test match intensity out there.
"We are growing and getting better as a team, but we gave them too much of a start. When we come away from home you ask for character from a team and we certainly showed that - we gave our all."
At the end of the game O'Gara, who has now scored 1,365 points in 110 Heineken Cup games going back to his debut against Harlequins in 1997, walked around the Stade de la Mosson pitch saluting the magnificent Munster fans with his son in his arms.
That promoted the question as to whether or not this might be the final European outing for the 36-year-old legend. It was a topic he was quick to sidestep after the game.
"It's not the time for me to be thinking or talking about retirement. I owed it to my team-mates to be totally focused on the game today and I was," he added.
"I love coming to France and playing and this competition have given me the best memories. I will sleep on it until the end of the season, but it will be hard to leave this beauty (turning to Paul O'Connell) on his own next season."