Ulysses' Sail: An Ethnographic Odyssey of Power, Knowledge, and Geographical DistanceWhat do long distance travelers gain from their voyages, especially when faraway lands are regarded as the source of esoteric knowledge? Mary Helms explains how various cultures interpret space and distance in cosmological terms, and why they associate political power with information about strange places, peoples, and things. She assesses the diverse goals of travelers, be they Hindu pilgrims in India, Islamic scholars of West Africa, Navajo traders,