Abstract: The ethnographic imagination links the big stories of broad historical forces and the small stories of individual lived experience. In the study of world Christianity, it links church movements with individual participants, texts with oral traditions, creeds with practices. In this article the author examines the role of migration in the Christian story of the Lisu of southwest China. The author tells the big story of how migration across borders greatly impacted the resilience of Lisu Christianity, allowing it to transcend the political turmoil of particular countries. But she also tells a small story, showing migration as a lived experience that greatly impacted one Christian family. The ethnographic imagination seeks truth in the frayed edges where big stories and small stories meet. Ultimately, the ethnographic imagination is an appropriate research posture for world Christianity because it requires that scholars approach the subject less as a corpus of texts and more as a community of souls.