Two concepts help drive Grange on the trek. One is the western idea of Shangri-La. A friend who completed the Snowman Trek described a high-altitude village in a valley in remotest northern Bhutan as "the most beautiful, most mysterious and most otherworldly place I've ever been." It becomes Grange's personal idea of Shangri-La and motivates him along the trek. The other is a Tibetan and Bhutanese concept that inspired the book's title. In local folklore, an auspicious superstition surrounds blossom rain, the moment of rainbow light when it is raining and sunny at the same time. Those Bhutanese he asks about blossom rain provide no better than enigmatic answers about its significance, and his desire to grasp the concept also animates his efforts. Beneath Blossom Rain becomes as much a journal of an internal trek as a Himalayan one, a tale in which we are even privy to Grange's ongoing debate with his "inner critic." We also learn with Grange that enlightenment may not always come in places or events we would suspect.
Grange occasionally falls into a few clichés ("like home, sleep felt far away") and platitudes ("A journey of a thousand miles begins with a single step"). Additionally, some of the conversations with his fellow trekkers and guides seem somewhat artificial, designed more to convey basic information to the reader that someone on the trek would already know. Still, Grange brings a light touch of humor and direct, conversational tone that outweighs these occasional foibles. More important, Beneath Blossom Rain succeeds in merging travelogue with personal contemplation, allowing the armchair traveler to share both the physical and personal journey and taking them beyond a geographic place to a more philosophical one.