Endo Mitsunaga is only the 13th monk since World War II to complete a grueling training regimen of walking around Japan's Mt. Hiei for a thousand days. Mitsunaga, who has earned the honorific daiajari as a result, is shown here in his living quarters at the Enryaku-ji temple complex atop Mt. Hiei, near Kyoto. Anthony Kuhn/NPR hide caption

itoggle caption Anthony Kuhn/NPR

Alexandria McPherson, 8, prays during a National Day of Prayer gathering at City Hall in San Antonio in 2007. Eric Gay/AP hide caption

itoggle caption Eric Gay/AP