After seemingly falling to her death after battling fallen Jedi Baylon Skoll, Ahsoka Tano finds herself in the World Between Worlds, face-to-face with Anakin Skywalker. This is the first time since seeing him as Darth Vader that Ahsoka encounters the man she remembers. Anakin gives Ahsoka one final lesson to complete her training, a lesson Luke Skywalker may have taught him. Throughout the first half of Ahsoka, the titular former Jedi Padawan is driven by her desire to prevent another a war and find Ezra Bridger. It is towards this end that she chooses to train Sabine Wren, who exhibits no Force abilities. As viewers have seen, Ahsoka's training for Sabine is mostly focused on combat, which likely appeals to the Mandalorian Padawan.
Source：https://www.cbr.com/ahsoka-anakin-final-lesson-explained/
