Smith was awarded the best-on-ground gong after the Cats belted the Swans by 81 points at the MCG on Saturday.
The 33-year-old tallied a match-high 32 touches (11 contested), registered five clearances, made 771 metres and booted three goals, including a major that helped put the result beyond doubt.
Smith received a handball from Jeremy Cameron as Geelong led Sydney by 48 points midway through the third quarter, before setting his radar on the run and blasting home a goal from the 50-metre arc.
Later in the afternoon at a sold-out MCG, the wingman collected his fourth premiership medal, adding to the three gongs he won as a member of Hawthorn’s threepeat.
But the first medal he had draping around his neck on Saturday was for the best-on-ground performance, paving the way for his beautiful tribute.
“I’d like to give a shout-out to my family: my beautiful wife Candice and my hero growing up. Pop, I love you,” Smith said on stage after receiving the Norm Smith Medal.
The New South Welshman kissed his black armband and pointed to the heavens.
He created his own slice of history in the best-afield showing, becoming the oldest player in history to win the medal.
Smith edged 1980 Norm Smith Medallist Kevin Bartlett and 1995 winner Greg Williams, who were 32 and 31 respectively.
Smith polled 14 votes in the Norm Smith Medal voting, outdoing Patrick Dangerfield (10) and Tyson Stengle (four).
He was presented the honour by former Collingwood champion Nathan Buckley, the winner of the 2002 medal, prompting his teammates to swarm him in a moment to cherish.
Norm Smith Medal voting
14 | Isaac Smith (Geelong)
10 | Patrick Dangerfield (Geelong)
4 | Tyson Stengle (Geelong)
1 | Sam De Koning (Geelong)
1 | Mark Blicavs (Geelong)
Andrew McLeod (chair) | I Smith 3, P Dangerfield 2, M Blicavs 1
Jonathan Brown | P Dangerfield 3, I Smith 2, T Stengle 1
Michael Gleeson | I Smith 3, P Dangerfield 2, S De Koning 1
Abbey Holmes | I Smith 3, P Dangerfield 2, T Stengle 1
David Mundy | I Smith 3, T Stengle 2, P Dangerfield 1