More on Affinity Groups and Symbolic Grammar

I would like to revisit the topics of affinity groups and design grammar because I think I understand it better now. Plus, we have a test coming up, so review certainly wouldn't hurt anyone.
I went to a charismatic church service on Sunday night. I am not at all from a charismatic background. This was an amazingly eye-opening experience and I completely appreciated the opportunity to go and learn how other people worship-- I would recommend that everyone get out of their own tradition a couple times. It is valuable in so many ways I can't even begin to list everything I learned in that one experience, but enough of my little explore different Christian traditions plug...Okay, so for those of you who are unfamiliar with a charismatic tradition, I will attempt to explain what I saw (for those of you who are from a charismatic tradition, feel free to make fun of my ignorance). I saw people dancing in the aisles, many people speaking in many different languages I am not familiar with, hands being laid on people, people falling down and being covered with blanket looking things, colored banners being waved in the air, people laying in the aisles, and people shouting out while one person was speaking up front. Okay, so I am not as lost as that description made me sound, but I would certainly not consider myself a part of the affinity group that uses these symbols and design grammar. I did not know why people were being covered with prayer shaws after they were literally knocked to the ground by the holy spirit. I did not understand how all of these fit together. What was even more amazing was that the person who took me to the service, who would consider himself a part of this affinity group, was unable to fully articulate to me what had went on at the service. So much of this person's knowledge was experiential. I would venture to say that is common among people in different affinity groups. Because they have grown up in or been a part of a certain affinity group for so long, they lack the vocabulary to effectively communicate what is going on inside of their affinity group. Understanding our limitations in explaining our own symbols and design grammars in a particular affinity groups is crucial for Christians. Both this other person and I come from strong Christian backgrounds, but even with that common bond it was difficult to communicate our own traditions to each other.