Knight and hero of the Republic
Adellen was born on Coruscant in the middle of a war. Her older brother went off to fight the Empire and Ada wanted to do the same as soon as she was old enough, but before this could happen the war came to her. She was nine when the Empire forces hit Coruscant itself and she remembers mostly chaos and panic.
She discovered her Force sensitivity at this moment and managed to save a few even younger children, but they probably woudln't have held for long if Jedi knight Dracen Rei had not happened to be nearby.
After the battle ended Adellen was shipped off to Dantooine despite her protests. There she begun her Jedi training and also heard about the peace treaty with the Empire, something she never fully accepted.
She views the Jedi as protectors of the weak, warriors of light and justice, just like Dracen Rei had been on Coruscant, and meditating while there are Sith at large seems to her a waste of time. The evil in the galaxy is clearly visible and should be dealt with.