The Power to Serve

It was a foregone conclusion that Teora's younger sister, the beautiful, talented Linea, would go far. Maybe even as far as Priestess. That was just how things turned out, and Teora was happy to be Older Sister: to protect, to encourage, to plan ahead.
But now that the task is accomplished, it seems Teora is destined to perform a larger role: one that might include wielding the power of the Deity to protect Her Herds and People. One that involves a long and dangerous journey where failure is not an option. How can Teora prepare herself for such a task?
And what happens to her after it's all over?