Nevermind...I found it.
Why is it important to go find your 'lost' lightsaber?
Actually, you don't go in search of your lightsaber because it hasn't been lost - when you get exiled from the Jedi Order, they just don't let you keep your lightsaber.
Sure, you could make a new one. But you're right, yours is special and worth reclaiming... if you choose to. -Chris Avellone