If Ahsoka meets Luke in a fanfic, it might start a new era of cooperation in the Star Wars universe. Their different backgrounds mean they have different ways of using the Force and different sets of skills. When they interact, they could share these with each other. This sharing could lead to new Jedi training methods being developed. Also, their combined efforts could bring more stability to the galaxy. They could be the ones to finally root out the last remnants of the dark side that are hiding in the corners of the galaxy, and their story could become a legend that future generations look up to, further strengthening the idea of the Jedi as heroes and guardians.