The arrows beside the civs religion. What do they mean?

[Mr Hyde]

http://img106.imageshack.us/my.php?image=arrowau1.jpg

Just thought a screenie was needed. If anyone would be so kind as to tell me what they mean?

I think its something to do with trade? I just had to ask cause in one my games, everyone had that symbol except for me, so I'm probably missing out on something....

 

[Palantir30]

I think its something to do with trade? I just had to ask cause in one my games, everyone had that symbol except for me, so I'm probably missing out on something....

Yes, it means that Civ is connected to your trade network. You have connecting harbors or roads or rivers or something.

You dont get that symbol because it's assumed you can trade with your own empire. (individual isolated cities are shown on internal screens)

 

[Mr Hyde]

Okay, so the symbol means the other civs are able to trade with me, right? Thanks for the quick answer, dude.