He knows, too, that victory will push him into the top five for the first time in his career, at the expense of Federer, and earn him £2,200,000 in this 50th Wimbledon of the Open era - not that he needs extra incentive.
Having not beaten the Spaniard in a Grand Slam since Wimbledon in 2007, and lost six of their previous eight Slam finals, the Swiss great put the head-to-head to one side to claim the title in a thrilling five set encounter to move eight clear of the field in the all-time list.
"Digesting success is difficult".
Federer defeated Marcos Baghdatis 5-7 7-5 6-0 6-2 for his second title in Melbourne and then shared an emotional moment with legend Rod Laver. "I'm not sure it's going to work out like this every time". That he could develop, implement and thrive with such a regal, nuanced game in an era of physical immediacy so chilling, is a marvel in and of itself. Andy Murray remains number one despite dropping out of the tournament earlier, while Rafael Nadal is number two.
Those who doubted him were made to eat their words in 2017, though, as a refreshed Federer ploughed through the men's draw and took apart an out-of-sorts Cilic in the final with another glorious display.
But once Federer broke for 4-3 the contest was all but over, and he took his second match point with an ace.
"It feels like a dream come true", added Muguruza. If there was ever a player whose footwork should be set to a Beethoven sonata or a Chopin nocturne, it's the Basel born and bred. "But the goal is definitely to be here again next year to try and defend".
The last time the Swiss won the tournament was in 2012.
Roger Federer has become the first man to win Wimbledon for an eighth time after he cruised to victory over a struggling Marin Cilic. Federer considered it the toughest of his six wins on the way to the decider.
The 23-year-old says she cares little for the ranking number next to her name, however.
Nerves were apparent for both men as Cilic opened the 131st men's final with a shaky service game.
The Wimbledon champion had skipped the French Open and the Clay Season to come to London. I kept on believing and dreaming and here I am today.
The incomparable Swiss turned his 11th Wimbledon final into a procession as tearful seventh seed Cilic, battling his nerves and a bloody blister, suffered a torrid afternoon.
Andy Murray held a huge lead at the start of the year but the Scot is now hanging on to the No.1 ranking by a thread, with 7750 points ahead of Nadal (7465).
In winning the tournament without the loss of a set, Federer matched the 1976 feat of Swede Bjorn Borg and his own run 10 years ago at the Australian Open.
On returning to his chair to await the presentation, you could see him wiping tears from his eyes as he waved to his wife Marika and four children in the Players' Box. This is the third time he has advanced to the final without losing a set, a fact he did not know, surprisingly. Obituaries have proven to be premature.
Over 14 years from the day he became a Grand Slam champion - in a world where Donald Trump presides over the US, the world seemingly exists on social media, Rooney has returned to Everton after about a lifetime at Manchester United, and Agassi has been retired for over a decade - Federer became the most successful male player in the history of the oldest and most prestigious competition in tennis.