But the federal government might be getting ready to tear that heart out. In a country where there are millions of illegal aliens -- and a shortage of Catholic sisters -- the feds are threatening to make her leave and return to her native Italy.
Sister Cristina got a letter from the government last week, telling her she must leave the U.S. by the end of the month.
She had applied to extend her visa and thought she was approved.
Then the letter from immigration officials arrived.
"I was very shocked and confused," Sister Cristina said today. "I don't know why this happened."
But she and her lawyer are having a hard time maneuvering through the government's red tape.
Sister Cristina came to Shreveport six years ago. The Renzi Center's children and their parents have become like family.
"If it's God's will, I'm leaving, but I will carry Shreveport in my heart forever," she said.
Parents got a letter from the center this week telling them about the situation.
"I still have three weeks to fight, so I'm ready to do so," she said.