Presencia judía en Cabeza la Vaca. Pensamiento religioso

In Cabeza la Vaca, there was a strong Jewish presence, as demonstrated by customs like slaughtering a pig at the doorstep. This was nothing more than a sign that they did not consider the pig impure and consumed it. If they had been Jewish before, this practice showed that they no longer were. But what did they think, what was their philosophy of life and death? Did they believe in reincarnation or the return to eternal life?