Volatile Yard 挥洒自如 Write anything I want to write...

When I upgraded my computer a few days ago, something on one of the casings involved caught my eyes:

Saw it? There is a Taiji [en.wikipedia.org] symbol (太极图) at the bottom of the casing!

Is there any special structural design that results in this taiji symbol? I took a look the bottom of the casing.

Hmm... No, I can't think of any other reason except that the symbol might be used to bless the computer components inside the casing? Some Feng Shui purpose? Nonetheless, the motherboard installed in this casing was spoiled last month (after using it for about 2 years). And this was the first reason that made me to upgrade my computer. :p

So do you have a better idea why the symbol is there? Tell me.