To celebrate our eighth birthday, we turn fittingly to the magic of the number eight. Eight symbolizes many things, but is uniquely ascribed to demonstrate the balance of the spiritualand materialworlds. It is the only number besides one that is a perfect cube. It's a Fibonacci number. It is also the periodic symbol for oxygen (great for a company whose namesake derives from the word “to breathe”). In Chinese culture, it is the luckiest number—a symbol of fortune. In numerology, eight represents victory, prosperity and overcoming.