As artists and just simply humans, we strive for balance and equilibrium. One of the principles of design that I find particularly fascinating is the Golden Section, also called the Golden Mean. It is based on the mathematical equation below. I typically don’t use the Golden Section in a super conscious manner while composing a piece, however keeping in mind this kind of division of space is useful in finding a pleasing arrangement of elements.
It is also linked to the Fibonacci sequence and not so surprisingly, the sequence of the human genome.
For more reading on the Golden Section, check out http://en.wikipedia.org/wiki/Golden_ratio