I was at a party last night, and met a friend's new girlfriend. He was raised Missouri-Synod Lutheran, but now worships in the ELCA; she is a cradle Roman Catholic. Both are somewhat liberal in their outlook. They asked me help with a theological question: should he receive communion at her RC parish? I said, "According to the Code of Canon Law, no... unless there are very specific circumstances (which I later explained)." She agreed with me, but he balked at that, and said that he had the right to do whatever he wanted since he's a Christian as much as a Catholic is. So we went on to talk about what communion implies about doctrinal agreement, unity, and so on. But underneath all of this I was thinking about something more interesting: the whole time during our conversation, this "Catholic" woman kept using coarse - perhaps even blasphemous phrases - to describe the Blessed Sacrament and things of the Church. She used phrases like, "Jesus Cookie", and other awful words. I thought later on, "No wonder her boyfriend doesn't take the sacrament seriously." Who would when it is joked about and referred to in such silly ways?
When I was younger I, regretfully, used such language at times. Now I see how spiritually damaging it is. It is very wrong to make light of the sacred things of the Church. The sacraments, clergy, doctrines, liturgy - all of it - should be taken and discussed with the utmost seriousness at all times. This is what the Church at Corinth did, and why so many were sick and weak among them. The Church is the living Body of Jesus Christ, and is the Sacrament of Salvation (to use Vatican II language), so everything about it should be taken very seriously. And seriousness does not imply "stiffness" or "somberness". We can be reverent in our speech and actions, but still experience warmth, openness, and joy.