This paper contributes to the ongoing debate about whether early Irish culture is primarily Celtic, with an Indo-European background, or primarily the product of early Ireland’s encounters with Christianity and its Graeco-Roman inheritance. It pursues this question through exploring three intersections of early Irish culture with the form of Christianity that developed in Ireland. These intersections include early Irish beliefs and practices concerning flight, leaping, and curses, all of which occur against the backdrop of the huile which Suibne Geilt, in the Middle Irish saga Buile Suibhne, encounters. Buile itself may be understood in a variety of ways -as psychosis, as visionary experience involving the Otherworld, and as experience cont...