A poor woman gave birth to twins but had to give them up for adoption.  One was sent to an orphanage in Mexico and named Juan.  The other was adopted by Egyptian parents and named Amahl.  

Years later the birth mom wanted to connect with her boys; she received a picture of Juan and told her husband how much she also wanted to see her other son.  Her husband replied, “They’re twins.  If you’ve seen Juan, you’ve seen Amahl.”