The couple of times I've visited an orthodox church I have been struck by how different the tone and style of worship is from what we are accustomed to. There is a large Greek Orthodox Church on Alameda Blvd. in Denver. The worship space is marked by a wall in the front of the church called a raridose screen. It's a wall painted with icons. In the middle of the wall is what looks like a gold fence and a gate through which you can see the chancel.
Worshippers can watch the priest, the deacon and the acolytes as they move around the chancel.
Each person has a different part in the holy drama. The priests, deacons and the choir that is seated in the balcony in the back of the church chant back and forth. Since much of the service is in Greek there is an added element of mystery. Behind the screen the coals for incense burn next to the altar and from time to time puffs of smoke rise filling the sanctuary with a mystical sweet smell. It is a festival of sight, sound and smell intended to stimulate all of the senses.