"As soon as I bounced out of the gate and got into my rhythm, I stayed focused on the job and pushed hard to the finish," Hall told the Herald.
"That's what you're there to do - so block everything else out. It's amazing to walk away on top again.
"The first run I had a mistake with a wheelie going in. That cost me a bit of time, but [on the second] I stuck to a process of putting down a clean run to be consistent, strong and powerful. I knew I had a good shot for sure."
The medal is Hall's second of the Games after securing bronze in the super-combined. Corey Peters also took bronze in the downhill sit-ski, making it the first time in 16 years New Zealand had collected more than one gong at a Games.
New Zealand's other representative was snowboarder Carl Murphy. His best effort came with fifth in the banked slalom.
Earlier in the Games, Hall was bestowed with the Whang Yuon Dai award, given to the male and female Paralympian who best exemplify the spirit and values of the event.
It was the first time a New Zealander had received the award, which dates back to 1998.
As recognition, a 75g pure gold medal will be presented to Hall at tomorrow's closing ceremony.
Organisers said Hall was selected for his passion giving back to the disabled community; encouraging and supporting people into para-sport so they can enjoy the same benefits he has; and to ensure that the future of the Paralympic movement remains strong.
Hall was represented by wife Elitsa at the press conference.
"The whole family is so excited for Adam. He has many family here supporting him.
"Truly Adam is who he is – that humble, down-to-earth, dairy farmer from Taieri.
"It is incredible Adam is getting this recognition, not only for himself but also for New Zealand, all other Paralympians and the next generation coming through."
The 30-year-old was diagnosed with spina bifida at birth but in an interview with the Herald last year, described himself as "lucky" because he can walk.
Hall competes in the "standing" class for those with an impairment that affects both legs, such as an above knee amputation or significant muscle weakness.
"I know no different, compared to someone who has an accident and has to adapt to things. In my upbringing, I was treated like anyone else rather than any form of cotton-wool syndrome where parents can be overprotective.
"I was disciplined like any other kid, and had my work ethic and determination drilled into me by my parents."
Hall revels in the freedom his alpine pursuit provides.
"Up a mountain, nobody knows you've got a disability. You're just somebody out there skiing.
"There's no better feeling than the adrenaline flying down a mountain at 100km/h plus, living on the edge, or in slalom when you get to be aggressive and hit the poles."
Hall has been involved in the sport as a skier or a snowboarder since age six.
Snowboarding only became a Paralympic sport at Sochi, so he pursued skiing 18 months from the Turin Games.
"When I started, most New Zealanders didn't know when the Paralympics were or whether we had any athletes going.
"The Games have had more media coverage and exposure since. It is a more professional movement these days whereas, when I started out, para-athletes and athletes with disabilities were often classed as second-class citizens compared to our able-bodied peers."
