1. "Patches of purple lupines had been applied to the high meadows between mountains with broad brush strokes" (214; ch. 17). It's a metaphor, because he's comparing the scenery to a painting.
2. "The harvest he reaped from these envelopes made the slide shows just bearable" (225; ch. 18). It's a metaphor, because he is comparing earning donations to reaping harvest.
3. "When a potential donor in Atlanta began calling CAI's office dangling monetary bait, Mortenson bit down on the hook and booked a flight" (230; ch. 18). It's a metaphor, because he is comparing offering money to luring a fish with a bait.
An emerging theme in this book is death, because 9/11 just happened, and Haji Ali and his wife died. Also, Jean Hoerni died in Chapter 14.