The save could be literal: CPR was performed, pulled from water, put out a fire, rescued from a snarling animal or a threatening situation.
The save could be inspirational: Something read in a book, a magazine, a placard, a wall hanging; a mental shift; a realization; an epiphany; something that was said; a behavior change; a belief change.
You get the idea . . . Saved. However you interpret this. Just write!