By Daniel Burke and Livia Borghese, CNN

Rome (CNN) – The photo roused emotions and sparked conversations around the world – but the man at the center of the image says the moment left him speechless.

“I tried to speak, to tell him something, but I couldn’t: The emotion was too strong,” says Vinicio Riva, the disfigured man embraced by Pope Francis in images that went viral.

“It all lasted not more than a minute, but it seemed an eternity,” Riva told the Italian magazine Panorama this weekend.

Riva, whose body is covered with tumors due to a rare disease, said his unusual appearance has led to a lifetime of living on the margins.

That is, until he showed up at St. Peter’s Square on November 6.

Riva went to Rome on the advice of a friend with whom he travels to Lourdes, the Catholic shrine in France visited by thousands of ailing and infirm pilgrims each year.

After meeting Francis, Riva said he kissed the Pope’s hand. Then the Pope pulled Riva toward him, hugging the 53-year-old Italian and kissing his face.

MORE ON CNN: Why the Pope’s embrace is so powerful

Riva, who lives in Vicenza in northern Italy, said he suffers from neurofibromatosis Type 1, which causes painful tumors to grow throughout his body. His younger sister and late mother also suffered from the rare disease, Riva told Panorama.

The first signs of the disease began when he was 15, Riva said, and since then, he has often felt ostracized because of his unusual appearance.

But the Pope showed no sign of discomfort as he approached, said Riva. Instead, the pontiff’s face broke into a calm smile.

“But what most astonished me is that he didn’t think twice on embracing me,” Riva said. “I’m not contagious, but he didn’t know. He just did it; he caressed all my face, and while he was doing that, I felt only love.”