Lightsabers

In response to my mom's comment. Lightsabers are made of pure energy harnessed by a crystal in the hilt. Each crystal is a different color depending on the class of Jedi. Jedi Guardians are those Jedi of focus on combat training and mastery of the Lightsaber - Blue I believe (can't remember off hand). Jedi Consulars are jedi who seek to bring balance to the universe. Their focus is less on combat and more on mental discipline to augment their mastery of the force - Yellow. Lastly, the Jedi Sentinel. These Jedi strike a balance between to physical combat and mental disciplines - Green. These are basics colors which can be altered by adding different crystals to your lightsaber. An example would be Mace Windu's purple lightsaber. Red is generally associated with the dark side. Have you heard of the lasted dark lord - Darth Dew. Sorry, just a plug for 7-11's flavour of the month for May (Black Mountain Dew). You can also learn the Freeze with Yoda (Mountain Dew).