Every Sunday, the Catholic prayers and songs of the Sagrado Corazon congregation fill the 3,300-seat auditorium of a former Southern Baptist megachurch with the Spanish language.

From young to old, members filled the pews on the lower level of the vast space and even spilled into the upper deck during a 10 a.m. service on a Sunday in October. The priest celebrated the Mass in Spanish from a platform at the front of the auditorium as the congregation stood, sang, kneeled and prayed in unison at various moments during the service. MORE