Kara Thrace is Aurora Take 2
Or, Kate's personal canon. This is slightly revised, as I've been thinking about this more.
• The Lords of Kobol were/are "angels" made physical beings by God-who-doesn't-like-to-be-called-that (hereafter Gwdltbct), and they lived with humans on Kobol.
• The humans on Kobol created Cylons and, as usual, the Cylons rebelled. Eventually the Cylons went off to Cylon Earth and the humans went off to the Colonies (where, I now believe, they abandoned their technology, much as they would do later on Earth). Aurora, the goddess of the dawn, apparently had some special connection with the Cylons, given the presence of the Temple of Aurora on Cylon Earth.
• In Greek mythology, Aurora (Eos) had a human lover named Tithonus. In older versions of the myth, she made him immortal. (A more familiar version of the myth has her ask Zeus to make him immortal, but she neglects to ask for eternal youth for him, so he ages forever.)
• Sam Anders met Aurora in her temple. He may or may not have known she was the goddess, but he wrote the song "All Along the Watchtower" for her and sang it to her. She acquainted him with (other?) angels — maybe Head!Six and Head!Baltar, although they may have taken other forms at the time — and forewarned him and thereby the rest of the Five of the coming destruction of Cylon Earth. She also gave him hints about the resurrection process, which he used with the others to recreate it in orbit and thus escape the destruction of earth. That is, she ... makes him immortal.
• Gwdltbct thinks Aurora needs to learn about what it's like to be human, and what death really means, plus he sees an opportunity to perhaps end the humans-make-Cylons-who-almost-destroy-hu mans cycle. So he incarnates Aurora on Caprica as Kara Thrace, daughter of Socrata and Dreilide Thrace. Kara didn't know who/what she really was. After finding Sam Anders again, she dies, thus really learning what it means to be human. But Gwdltbct wants her to also lead the humans and their Cylon allies to the safe haven he has prepared for them, so he sends her back in physical form — still not really knowing who she is — until she completes her task. I think that, on Earth, after she says goodbye to Adama, when she's talking to Lee — I think then she realizes who she is, and that she can now go join Sam. And so she goes.
• The Lords of Kobol were/are "angels" made physical beings by God-who-doesn't-like-to-be-called-that (hereafter Gwdltbct), and they lived with humans on Kobol.
• The humans on Kobol created Cylons and, as usual, the Cylons rebelled. Eventually the Cylons went off to Cylon Earth and the humans went off to the Colonies (where, I now believe, they abandoned their technology, much as they would do later on Earth). Aurora, the goddess of the dawn, apparently had some special connection with the Cylons, given the presence of the Temple of Aurora on Cylon Earth.
• In Greek mythology, Aurora (Eos) had a human lover named Tithonus. In older versions of the myth, she made him immortal. (A more familiar version of the myth has her ask Zeus to make him immortal, but she neglects to ask for eternal youth for him, so he ages forever.)
• Sam Anders met Aurora in her temple. He may or may not have known she was the goddess, but he wrote the song "All Along the Watchtower" for her and sang it to her. She acquainted him with (other?) angels — maybe Head!Six and Head!Baltar, although they may have taken other forms at the time — and forewarned him and thereby the rest of the Five of the coming destruction of Cylon Earth. She also gave him hints about the resurrection process, which he used with the others to recreate it in orbit and thus escape the destruction of earth. That is, she ... makes him immortal.
• Gwdltbct thinks Aurora needs to learn about what it's like to be human, and what death really means, plus he sees an opportunity to perhaps end the humans-make-Cylons-who-almost-destroy-hu