Pope Francis posed them questions including "why are you having lunch with the Pope when others are hungry in the slums?"
García said that question made the young people break into tears.
"He was telling us 'God loves you a lot' through the questions he asked us," she remarked. "He didn't tell us directly that, but he made us reflect."
She said he made them reflect what they will do in the future against all the world's injustices. He asked them not to do big things, but small things with love.
"We were all nervous in the beginning because we didn't know what we were going to talk about with him, but he just came and it was very normal," she told CNA.
She said that for her, meeting the Pope was a top point in her life, calling the meeting "the cherry on top."
"Listening to him was reaffirming everything I had been learning spiritually up until now in my life," said García.
"It was a very impressive atmosphere and I know we are all very moved."
Danielle Danowsky, from Michigan, said meeting Pope Francis was amazing and that she had "no words" to describe it.
"I want to live now more profoundly the things that he said to us during the meeting," Danowsky told CNA.
"He mentioned how we are so fortunate with our health and with what he had and that we should care for the needy," she added.
(Story continues below)
Subscribe to our daily newsletter
Thomson Philip, an India-born man from New Zealand, sat at the left hand side of the Pope.
He said he felt "very blessed," calling the meeting the "biggest opportunity" he had had in his life.
"When I received the email inviting me to this lunch, I was so shocked I almost fainted," he told CNA.
After he confirmed the authenticity of the email, he could not even tell his parents about it because the youths were asked to keep it confidential.
Like the other youth who lunched with the Pope, Philip felt more responsibility because of the meeting.
"He asked each one of us to spread the hope of Christ among the young people," said Philip.