This seems to be quite the recurrent theme in many churches today. On the surface it sounds great. Why can't it just be about Jesus? Why can't we accept that the only real difference between the coffee-shop churches I attended in Southern California and the Tridentine High Mass is our form of worship? While we are at it, what is the difference between holding mass and staying at home to read my bible and pray?
Granted that many within the Catholic church have different spiritualities. They all share the same beliefs. They also share something deeper. They share in the one truth that has any chance of uniting Christianity again. The only chance we stand to true unity of Christ's body is in the Eucharist.
Every Mass the priest breaks the body of Christ for us. It truly is his body broken for us. Then when we walk up to receive him, we are experiencing Christ's body being united to Christ's body. The Eucharist is the true body of Christ, not just a symbol (although there is symbolism incorporated), not just a "God is everywhere" general feeling, not even a warm and fuzzy prayer-like feeling.
About a week ago I was at mass kneeling in anticipation for Christ to come. During the consecration my heart almost stopped. What right does my heart have to claim to possess any love or any life of its own when I am in the physical presence of the source and creator of all love and all life? My heart physically skipped a beat and then continued to beat in what can only be described as a whisper, almost like a freshman theology student might be before Pope Benedict to avoid drawing his attention and doing anything foolish.
I remember a longing that almost became painful while I went through RCIA. I waited anxiously and intensely for when I could receive the Eucharist. I knew that Christ was truly present. This presence of Christ is one of the largest factors for me to join the Catholic church. I had known God for many years, we had talked, I'd even heard his voice. The miracle came when I realized his physical presence.
I constantly use the comparison of a marital relationship or a boyfriend/girlfriend because it is easily understood and the bible does so also (the Song of Solomon). How can a woman love her husband if he is not physically present? Absences are OK, but if you are never physically present, then how do you develop a relationship at all? It becomes a long-distance relationship. It is almost like an internet dating service, where you are never allowed to meet. Some may be able to subsist on a vague post-mortem type of promise to be present with Christ, but he promises to be with us now. I need Christ now because I can't make it through without him.
The greatest way to evangelize to anyone is to get them to realize the miracle present in the Mass. People can argue their own personal interpretations of scripture all day long. It basically boils down to opinion and false rules imposed upon scripture. Our truth is not present strictly in empirical evidence (although Catholic teaching will never contradict the bible and vice versa). Our truth exists beyond the malleability of academia. It exists in absolute reality and perfect recognition of Christ truly present as the head of the church.