In Western culture, it has been important to emphasize the difference between humans and other animals. One way of demonstrating this difference is through chairs. No other animals sit on chairs.
Sitting on the floor, on the other hand, emphasizes our connection with the earth and the soil. It also reminds us of our similarities with other animals. When we sit on the floor, we are on their level.
I have for a long time wanted to set up spaces for sitting on the floor, and Breema has given me an excuse. We now have padding under the carpet in the livingroom (in front of the woodstove/fireplace), and have moved the coach over to the side. I find that sitting and lying on the floor while reading, talking and relaxing is far more pleasureable than even the most comfortable coach or chair.