Warning! This article contains spoilers for Ahsoka episode 8.
Summary
- Anakin Skywalker's appearance in the World Between Worlds confirms that he was a Force ghost, teaching Ahsoka her final lesson.
- The presence of darkness in Anakin's Force ghost was likely a reflection of Ahsoka's perception and the influence of the World Between Worlds.
- Anakin's Force ghost, though invisible, can be sensed by others, showing his strength in the Force and his role in bringing balance.
The appearance of Hayden Christensen's Anakin Skywalker in the World Between Worlds in Ahsoka episode 5 is easily revered as one of Star Wars' best moments, but it's also been shrouded in mystery. Not much is known about the World Between Worlds other than what was discovered and told in Star Wars Rebels. When Ahsoka (Rosario Dawson) comes across Anakin there in Ahsoka, then, it's been left a mystery whether she's seeing the Force ghost of Anakin or if it's simply the Force itself creating the illusion of him in Ahsoka's subconscious.
By the end of Ahsoka episode 5, this question has no clear answer. The only thing viewers get to see is how Anakin's lesson starts to transform Ahsoka, taking her arc from Ahsoka the Gray to Ahsoka the White. Given that the World Between Worlds is such a mystic place of the cosmic Force, it's seemed as if any answer could be possible, but the mystery has remained – until the Ahsoka finale. Now, Star Wars has confirmed what Anakin was in the World Between Worlds.
Your browser does not support the video tag. Anakin's Force Ghost In Ahsoka Episode 8 Confirms The Truth 
Anakin's Force ghost has at long last appeared to Ahsoka at the end of Ahsoka episode 8, confirming that it was indeed the Force ghost of Anakin she saw in the World Between Worlds. The way Anakin's Force ghost regards Ahsoka on Peridea is evidence of the fact that he's the one who taught her that last lesson she needed, especially when he sees her passing it on to her own Padawan. The mysticism of the World Between Worlds allowed him to appear there without the familiar blue glow of a Force ghost that usually gives them away, hence why that mystery was able to continue until his Ahsoka finale appearance.
