Often spoken at the end of a prayer, a well-known Sioux phrase affirms that "we are all related." Similarly, the Sioux medicine man, Brave Buffalo, came to realize when he was still a boy that "the maker of all was Wakan Tanka (the Great Spirit), and . . . in order to honor him I must honor his works in nature." The interconnectedness of all things, and the respect all things are due, are among the most prominent--and most welcome--themes in this...