The reward for spiritual currency is longer lifespan. I would like to do more to make it clear that is happening. I think most people I've chatted with about this have had something to say about the controls, so you are definitely not alone there.
Also, the pun was Annikat's idea. As soon as she proposed it we all pretty much instantly agreed it was the 'rite' name. It still makes me giggle when I think about it.