Personal Theory: Rey is neither a Skywalker nor a Kenobi. The Force was pointing her to the lightsaber…
- To return it to Luke
- Not because she’s related to Luke or Anakin, but that she’s the next “Space Jesus” like Anakin was — born w/o a father, and has a very strong natural ability with the force, which is why she was abandoned on Jakku.
It’s important to not get caught up in the “the saber was calling to her” crap. That’s just a figure of speech. A lightsaber is an inanimate object. A Jedi is guided by the Force. That’s what happened here.
Personally, I’d like to see her move to a staffsaber after her training since she’s an accomplished staff fighter already.