Extended universe books allude to a Jedi having to "forge" their own light saber as part of their trials. It seems to be both a rite of passage, and a somewhat holy experience. The connection isn't really explored more than that, though.
How did this forging process become part of Jedi tradition?
Is there a similar tradition for the Sith?
Who made the first light saber, and how was the process developed from one of engineering a weapon to the holy trial for the warrior sect?
Are there any more powerful light sabers within canon?