Obi Wan förklarar detta i novelleringen av Star Wars: Episode IV - Ett nytt hopp :
"This was the formal weapon of a Jedi Knight. Not as clumsy or random as a blaster. More skill than simple sight was required for its use. An elegant weapon. It was a symbol as well. Anyone can use a blaster or a fusioncutter — but to use a lightsaber well was a mark of someone a cut above the ordinary."
― Obi Wan Kenobi (quoted on Wookieepedia)
Även den officiella Star Wars -webbplatsen säger att Jedi och deras ljuskällor var oupplösligt sammanflätade:
Although use of the lightsaber is the mark of a Jedi, it is also used by their sworn enemies, the Sith. Typically, a Jedi’s lightsaber blade is colored green or blue. Other colors are rare but possible, most notably seen with Jedi Master Mace Windu’s purple blade. Sith uniformly use red-bladed lightsabers -- an intense, aggressive color that represents their view of the Force.
An essential rite of passage for young Jedi is the Gathering. In the Gathering, younglings go to the frigid ice world Ilum, where they search for kyber crystals to build their first lightsabers. The crystals are located in the planet’s Crystal Cave, an intimidating maze, and “call out” to the Jedi they are in tune with. Once the correct crystal has been found, younglings rendezvous with Huyang, and ancient droid who chooses the parts necessary to build a lightsaber. With everything in place, younglings complete the ritual by constructing their Jedi weapons through a graceful use of the Force.