"The nerves, the adrenaline I feel when I play on this court, it is impossible to compare ... it is the most important event in my career, to win again here is impossible to describe", he said.
But while other players will usually towel off after a service game, Nadal towels off after each point. I played against the biggest clay-court player ever. If he can manage his body well, there's no telling how many Grand Slam titles Rafa will end up with when he hangs up his racquet.
Since winning his maiden title on his debut in 2005, Nadal has only failed to take home the trophy on three occasions - in 2009 when he lost to Robin Soderling, in 2015 when he was beaten by Novak Djokovic and past year when he had to pull out because of a wrist injury. He lost in the quarterfinals at Roland Garros, where he won the title a year ago to complete a career Grand Slam.
His defeat to his Swiss Rival in January, gave Federer his 18 Grand Slam.
But that was before any knee trouble and the 31-year-old has lost to opponents ranked between No 100 and No 144 in his last four appearances at the All England Club.
On his way to the title match, he has shipped just 29 games, six fewer than when he made the 2012 final and just two more than the record of 27 conceded by Bjorn Borg in his 1978 trophy season. This is the first time Nadal has won in Paris without dropping a set.
Wawrinka, who may have been feeling the effects of an epic semi-final against Andy Murray, started slowly and could not get into the match.
Martina Navratilova, previously tied with Nadal, owns nine singles titles at Wimbledon, while Margaret Court holds 11 singles titles at the Australian Open - a feat spanning both the amateur and open eras.
The Swede, hosting Eurosport's Game Set and Mats programme in Paris, said: "Nadal has changed his game and he is playing way more aggressive, closer to the baseline, it's a different Nadal".
Nadal, who has been beset by injury issues during those intervening years, believes it is the way that he responds to adversity that has enabled him to reach such heights.
"But I knew that I had been playing too good in the tournament to play a bad final". At the beginning of the year, Nadal and Federer met in a classic five-set final during the 2017 Australian Open final.
On grass and hardcourts Federer edges him 12-10, but on clay Nadal boasts a dominant 13-2 record.
He said: "I love grass, everybody knows, and it's a surface that I really enjoyed a lot playing on".
"Winning these kinds of titles, you have chances to become any number on the ranking".