Originally Posted by: axemaster911But I think a good common sense explanation of the circle of fifths function would most likely be beneficial to those who it could help, like me.
I'd like to understand it myself. :D

Not sure if the subsequent posts have helped you fully understand the circle yet, but this is one of the most straightforward explanations I've yet come across, along with how to visualize it and how it's useful:
Circle of 5ths lesson