Floor

Your support, your physical life. You can be floored or overcome. Lying on the floor and finding it difficult to move represents being overpowered by gravity and life experiences. Basic things. Humility.

The floor also represents basic attitudes and confidence. The floor appears without much emphasis in many dreams. This suggests it is depicting the present situation or environment you are in. For instance first floor or second floor would suggest a different situation in which the events of the dream are taking place.