Britain will try to win the competition for the first time since 1936 when they face Belgium in Ghent from Friday.
The draw for the best-of-five format will take place at Flanders Expo at 13:00 GMT on Thursday.
"It means a lot to everyone to be in this position," the British number one told BBC Sport.
"Five years ago we were way, way behind in this competition - I think it was the lowest position we'd ever been in, so five years later to be playing and competing in the final is a great opportunity."
Britain were playing Turkey in Eastbourne to avoid relegation to the fourth tier of the Davis Cup when Murray's fellow Scot and former coach Leon Smith took over as captain in 2010.
The subsequent rise through the divisions to reach the final has been the fastest in the competition's 115-year history.
Murray, 28, is hopeful tennis in the UK will benefit from increased interest as a direct result of the team's efforts on court.