Well, the only two cases I can refer to in lore for ancestors empowering somebody are soulstones, which are memories, experiences and testimony from the people that wore it before, and the case of A-Towa Cant coming back in the form of a ghost (that can even interact with the world around), but that second case seems pretty much linked to the WhM soulstone in the first place so... Yeah. Soulstones.
And that thing with Louisoix in the last Coils..
Doesn't mean it's the only way to do it though. But as far as I know there is nothing else in the lore currently existing for that purpose.
Then of course you have all the more creepy ways like bringing back your loved one from the dead in twisted voidsent personas and the likes, and then making them possess you and whatnot, but I doubt that's really empowering by ancestors proper. :p
And that thing with Louisoix in the last Coils..
Doesn't mean it's the only way to do it though. But as far as I know there is nothing else in the lore currently existing for that purpose.
Then of course you have all the more creepy ways like bringing back your loved one from the dead in twisted voidsent personas and the likes, and then making them possess you and whatnot, but I doubt that's really empowering by ancestors proper. :p
Balmung:Â Suen Shyu