I am naive in these cultures and what tradition is to them. It's very important, I know... So, is this a culture where sitting in the floor on pillows and the atmosphere is is very important to the culture?

You dont have to sit down on pillows because they only have tables and chairs.

The Afghani culture is derived and contains segments of Islamic Traditions where sitting on the floor and eating on one long "dastarkhan" or cloth and sharing food is considered a part of Islamic practice and promotes blessings in a home and develops a sense of affection and closeness within the family. That being said there are comfortable tables and chairs at Aria Afghan Restaurant.

Did not understand, what are you trying to ask ?