Book excerpt: From the author of the enduring classic The Solace of Open Spaces, here is a wondrous meditation on how water, light, wind, mountain, bird, and horse have shaped her life and her understanding of a world besieged by a climate crisis. Amid species extinctions and disintegrating ice sheets, this stunning collection of memories, observations, and narratives is acute and lyrical, Whitmanesque in breadth, and as elegant as a Japanese teahouse. “Sentience and sunderance,” Ehrlich writes. “How we know what we know, who teaches us, how easy it is to lose it all.” As if to stave off impending loss, she embarks on strenuous adventures to Greenland, Africa, Kosovo, Japan, and an uninhabited Alaskan island, always returning to her simple Wyoming cabin at the foot of the mountains and the trail that leads into the heart of them.