How does the author use personification in the nonfiction book, Underland?

MacFarlane often uses personification to describe the landscapes in which he travels in Underland. MacFarlane’s use of the device differs from other nature writers because he extends human characteristics to even ice and rock. For example, an ash tree has a “hollow heart,” according to MacFarlane (3). Limestone is the “liveliest, queerest” rock MacFarlane knows, he says (32). He gives the characteristics of memory and song to ice. He writes, “And it sings, the moulin sings, with a high, steady, neck-tingling cry” (358). MacFarlane’s descriptions of non-human beings are eerie and curious enough to help the reader remember that the consciousnesses he is describing are beyond human understanding.