As Catholic Christians, we believe that contained in the ordinary species of bread and wine after the consecration by an ordained priest is the true body, blood, soul, and divinity of Our Lord Jesus Christ.  It is the REAL PRESENCE of Jesus.  This is what separates us from our Protestant Brethren.  For them receiving communion at their service is a mere symbol.  For us, it is "real."

Come and receive our Lord each Sunday in the Eucharist.  It is the best meal you will ever receive!

http://www.usccb.org/about/justice-peace-and-human-development/upload/eucharist-social-mission.pdf