Holy wells dedicated to Saint Brendan are scattered across the country, particularly in the west, and they occupy a curious space in Irish religious life, neither fully absorbed into official Church practice nor entirely separate from it. These sites were typically places of pattern, the local term for a devotional gathering held on a saint's feast day, where prayers were offered, rounds walked, and water taken for its reputed healing properties.

Saint Brendan of Clonfert, also known as Brendan the Navigator, was a sixth-century monk whose fame rests largely on the Navigatio Sancti Brendani, a Latin text describing an extraordinary sea voyage to a promised land in the western ocean. Whether the account reflects actual seafaring, spiritual allegory, or a mixture of both has occupied scholars for generations. His cult spread widely across Ireland and beyond, and wells, churches, and promontories along the Atlantic seaboard were dedicated to him over the centuries. A well in his name at Roskeen places this quiet Mayo townland within that broader geography of Brendan's enduring presence in the landscape of the Irish west.

Beyond its dedication and location, the specifics of this particular well remain lightly documented at present, and little further detail can be confirmed with confidence.