*shrugs*
I really haven't the slightest idea.
Maybe all muslims carry a compass with them.
Or
Maybe the rug is a compass.
When the time for prayer comes, the worshipper lays the rug on
the ground, so that the top points towards the direction of Mecca,
Saudi Arabia. After prayer, the rug is immediately folded or
rolled, and put away for the next use. This ensures that the rug
remains clean.
http://islam.about.com/od/prayer/f/prayer_rugs.htm
yep i reckon it's the direction of the sun. you're not one?
