Brock Johnson said:
You could say the same thing about the Justice card and the devil and the lovers and the high priestess. All are near symmetry but I don't think that they have anything to do with the meanings unless you get a feeling.
I have to disagree with you here Brock. The symetry in the Major Arcana cards (I'm presuming you mean the 2 pillars that appear in many cards and the 2 people in The Lovers and The Devil cards) definately do mean something.
The Lovers and The Devil are numerically equal (both are sixes) and as such can be read as 2 sides of the same coin. The Lovers card is about choice and The Devil card is about the illusion that there is no choice.
The 2 pillars in Justice, The High Priestess, The Hierophant and others are representative of many dualities - everything has it's opposite -the Universe is full of dualities and polarities.
Throughout the Major Arcana you will find them - and they do mean something...
As for the symetry in the 8 of Swords and the 9 of Wands - I've never noticed it before but now that you've pointed it out, I see it... Not sure if it's intentional (although I'd say it probably is) and not sure what it could mean.
I've scanned both cards together so that folk can compare.