Like most sisters who are only 18 months apart, Marilia and Nicole P. of Cuzco, Peru, share a lot in common. Both of them love ceviche, a traditional Peruvian dish made with fish marinated in lime or lemon juice. They both say Lehi's dream is their favorite scripture story. And if "How Great Thou Art" were the only hymn in the hymnbook, they would both be happy singing it over and over again.