at oxygen-light elevations. But with time, altitude turns up the volume on irritability, anxiety, and exhaustion. In the heights, we are given a taste of rapture and then laid bare, turned toward our worst selves. Discovering how we react through it all, and how we treat those journeying with us, is something of a spiritual mystery, an act of self-excavation, that continues to call people to the big mountains of the world. But Grace
