For more than 20 years, the brother and sister with the gift of both song and prayer have brought strength, inspiration -- and hope -- to so many people through their spiritual Contemporary Christian music.  Mater Dei has gained a strong following through the years -- with 11 CDs, DVDs, and sold out performances -- including their "Nights of Recollection" at local parishes to sold-out concerts at the Tilles Center for the Performing Arts, Avery Fisher Hall and Alice Tully Hall at Lincoln Center and Westbury Music Fair (now known as The Theatre at Westbury), as well as internationally.  In addition, they have completed many seasons as hosts of their own television show, a program of faith, sharing, music and prayer on Long Island's Telecare Network and Brooklyn/Manhattan's The Prayer Channel.  In addition, they have donated over $370,000 to local charities.