Imagine a world without wind. Lakes would be calm. Falling leaves wouldn’t blow in the streets. But in still air, who would expect trees to suddenly fall over? That’s what happened in a three-acre glass dome built in the Arizona desert. Trees growing inside a huge windless bubble called Biosphere 2 grew faster than normal until suddenly collapsing under their own weight. Project researchers eventually came up with an explanation. These trees needed wind stress to grow strong.

Jesus let His disciples experience gale-force winds to strengthen their faith (Mark 4:36–41). During a night crossing of familiar waters, a sudden storm…