When to call for Spirit saves?
While working on my campaign I notice that I cannot come up with situations where players would need to make a SPI save, it's almost always CLA that fits better. It bothers me that I underutilize one of the virtues in the design, probably because I don't understand it properly. I remember that in one thread here I saw a half-joking explanation that CLA is for confusing s**t and SPI is for depressing s**t, but this still doesn't give ideas on what exactly would cause it during exploration or battle.
What do you do with it? What kinds of attacks would call for a SPI save? In what situations a Knight would need a SPI save during exploration?