Hey bro. Just doing some research on grimoire cards and from what I can see all guardians are resurrected soldiers chosen from the dead and revived by the travellers ghosts! There are several sentences that refer to this. No doubt more will be revealed during the game but I wondered if your previous traits may unfold into powers or talents later revealed by your ghost? Also your ghost can and will protect, defend, and revive you so that is another something to see in game. :)