Williams needed only 51 minutes to beat the Russian in an ominous warm-up for the Australian Open, which begins in Melbourne on January 14.
"I've been in the zone a few times," Williams said.
"I don't know if I was in the zone today, but I was definitely heading in that direction. I've been in the twilight zone before, where I just felt so good I couldn't do anything wrong."
The world No.3's performance was so strong that Pavlyuchenkova said afterwards: "I always feel like I don't know how to play tennis when I play against you."
Williams captured the 47th title of her career. She has won 35 of her past 36 matches while claiming Wimbledon, the Olympics, the US Open, the season-ending tour championship and now the opening event of 2013.
The 31-year-old American roared through the Brisbane tournament without the loss of a set.
She said: "I was looking at a lot of old matches on YouTube, and I feel like right now I'm playing some of my best tennis. I feel like I want to do better and play better still."
Williams said a decision to seek on-court tranquillity after a shattering defeat to Virginie Razzano at the French Open last year had triggered her career resurrection.
"I really started being more calm on the court and just relaxing more, if it's possible for me to relax," she said.
"I feel better when I'm more calm. When I'm crazy like I was in Paris, as you can see, it doesn't do great for me. I think it is a really fine line between being too calm... I think sometimes if I'm too calm it doesn't work for me, either. I can be calm and still be pumped up and really excited.
"I can't do too much of either."
Williams said she wanted to take up meditation as an off-court routine, even though it would challenge her.
"I can never sit long enough for meditation," she said. "I really want to meditate more and I want to be still and be in that quiet area. But I just pick up my iPad and start playing some games, and then next thing I know I'm watching TV.
"Hopefully I can get there."
At Melbourne Park Williams will be chasing her 16th major championship and sixth Australian Open title.
She will start as the clear favourite after her irresistible progress through the Brisbane event coincided with injuries hampering the preparations of world No.1 Victoria Azarenka (toe) and No.2 Maria Sharapova (collarbone).
In New Zealand, top seed Agnieszka Radwanska began her Australian Open preparations in winning style, accounting for 2010 champion Yanina Wickmayer to claim the Auckland Classic title.
The world number four, who had not dropped a set throughout the tournament on the central Auckland courts, beat the 23-year-old Belgian 6-4 6-4 to claim her 11th WTA tour title.
Both players had trouble with their serve in the first set, with Wickmayer, who had problems with her ball toss in the windy conditions, broken in just the third game of the set.
The Belgian, however, managed to get back into the match when she broke to level at 4-4 only for Radwanska to break back immediately and then serve out to take the set in 45 minutes.
Wickmayer, who was told by her coach to start treating the game as a practice session and just go for her shots and not worry about the Pole's retrieving ability, made a strong start in the second set taking a 2-0 lead.
Radwanska's consistency under pressure, however, proved the telling point in the second set, constantly putting the ball back into play and waiting for the tall Belgian to make errors.
Wickmayer, whose emotions bubbled over as she became increasingly frustrated at the numerous errors she was committing, managed to delay the inevitable when she saved four match points on her own serve in the ninth game of the set, but was unable to stop Radwanska from sealing the title in the next game in 95 minutes.
In China top seed Li Na survived a mid-match meltdown to overcome Czech Klara Zakopalova 6-3 1-6 7-5 in the final of the inaugural Shenzhen Open, earning the Chinese a seventh career title.
World number seven Li, who won the 2011 French Open, looked in danger of disappointing the home fans after surrendering her serve in the first game of the deciding set.
Li, who beat fellow Chinese Peng Shuai 6-4 6-0 in Friday's semi-finals, hit back to win five of the next six games but from 5-2 up allowed fifth seed Zakopalova to draw level at 5-5.
In a topsy-turvy finish encapsulating the match, Li collected herself to put together two solid games and give her a boost ahead of the Australian Open, which begins on Jan. 14.
Li reached the final of the year's first grand slam in Melbourne in 2011 before going on to become China's first major singles champion in Paris.
Saturday's victory was Li's second WTA title in China, following her breakthrough at Guangzhou in 2004 when she became the first Chinese winner on the women's tour.
The $500,000 Shenzhen tournament became the third event in China on the WTA calendar for 2013 as tennis continues to expand in the country after Li's recent success.