What does it mean to actively participate in the mass?

About this sermon

http://www.catholic.com/ Fr. Carl Gismondi explains what it means to actively participate in the mass. Fr. Carl Gismondi is from Pittsburgh, PA. After several years of discernment, in 1995 he entered the Fraternity of St. Peter’s seminary, Our Lady of Guadalupe Seminary, then located at Scranton, PA. Following seven years of study, Fr. Gismondi was ordained a priest on June 29, 2002. From 2002 to 2003, Fr. Gismondi served as an Associate Chaplain at the Fraternity's apostolate in Sacramento. From 2003 to 2006, he served as Pastor of St. Michael's Church in Scranton, PA. Following his pastoral assignment, Fr. Gismondi attended the Dominican House of Studies, Washington, DC, where, in 2008, he earned a Licentiate in Sacred Theology. In July 2008, Fr. Gismondi was appointed as Chaplain to the Traditional Latin Mass community of San Diego. On October 7, 2008, following erection of St. Anne Catholic Church as a personal parish for the Traditional Latin Mass apostolate in the Diocese of San Diego, Fr. Gismondi was appointed as Pastor at St. Anne's.