A ratio of higher understanding. So what is the big deal with pi. A neat number, big deal? Well think of it this way, there is something mysterious about circles. Eyes, the sun, the moon...definitely something mesmerizing about circles. When you compare the radius to the circumference a number appears. No matter how big or small the circle the same number is created. The neat thing about this number it that is infinitely unpredictable. The more precision you seek, it keeps generating numbers if creative ways. It seems to echo the infinite attribute of creation, associated with divine creativity.
So in a way, understanding the creative nature of pi creates a sort of divine resonance with logical thinkers. Pi essentially cracks wide open, logical, rational, atheistic minds to a kind of thinking associated with religion and spirituality.
Alternatively, it can be used in Peru too! For the record Peru's flag came first!