Torres, who came off the bench to score the only goal of the game in the second half of extra time, was asked what the goal meant to him.
"In the end, the goal belonged to 47 million people, it wasn't mine or my team-mates'," he said. "Destiny was written."
Asked whether the final had been a difficult match, Torres pointed to the psychological challenge of facing Lionel Messi's Argentina.
"Yes, all finals are difficult," he said. "When you have Messi on the opposing team, that nervousness always creeps in. We've always depended on ourselves, on putting our football forward, and today we showed that once again."
The forward also spoke candidly about the personal significance of the moment, having faced sustained criticism over the past year.
"It's been a huge release, I've been a heavily criticised person," he said. "Destiny is written. Thank God, it gives me strength to keep going. In the end, God gives things to those who deserve them most."
On Argentina's approach to the final, and the impact of Enzo Fernandez's late red card, Torres said: "We knew Argentina were going to set up that kind of match, even more so with the sending-off. We managed to keep our composure and control the game."
Asked about his immediate plans following Spain's triumph, Torres kept his answer simple.
"I just want to grab the trophy, celebrate it with my family and bring it to the Spanish people," he said.
Torres' goal, his third at a World Cup and his first since scoring twice against Costa Rica in 2022, sealed Spain's second World Cup title and their first since 2010, adding to the European Championship they won in 2024 under Luis de la Fuente.
The 26-year-old, who moved to Barcelona from Manchester City in 2022, has faced periods of scrutiny over his club form in recent seasons, making his match-winning contribution in the biggest game of his career all the more significant.
His extra-time strike came moments after replacing Mikel Oyarzabal, continuing Spain's pattern throughout the tournament of finding decisive contributions from players introduced from the bench.
Luis De la Fuente's side became the third reigning European champion to go on and win the World Cup, following West Germany's achievement in the 1970s and Spain's own feat between 2008 and 2010, a golden generation Torres and his team-mates have now emphatically matched.