But for Akira Haraguchi, pi is more than just a vague figure or a mathematical concept — like zero — that proves itself vital to many calculations. In fact, he says the infinite series of numbers, which computers have calculated to more than 1 trillion digits without detecting any repetition or pattern, provides him with the source of epic novels and poems — and even the answers to his lifelong spiritual quest.

Go read this interesting article about a Japanese man, who recently recited 100.000 digits of pi.