Matsuyama said after the presentation that one of his first thoughts after victory was for his caddie.
"When the final putt went in, I really wasn't thinking of anything," he said.
"But then hugging Xander (Schauffele) but then when I saw my caddie, Shota, and hugged him, I was happy for him because this is his first victory on the bag."
"And then it started sinking in, the joy of being a Masters champion."
Part of the thrill, he said, is the idea that he could inspire some youth who become major golf rivals while he is still playing.
"It's thrilling to think that there are a lot of youngsters in Japan watching," he said. "Hopefully in five, 10 years, when they get a little older, hopefully some of them will be competing on the world stage.
"I still have a lot of years left, so they are going to have to compete against me still. But I'm happy for them because hopefully they will be able to follow in my footsteps.
"I can't imagine what it's going to be like, but what a thrill and honour it'll be for me to take the green jacket back to Japan."