Holy wells are among the most enduring features of the Irish countryside, places where pre-Christian reverence for water sources became absorbed into Catholic practice over centuries, accumulating rituals, patron saints, and patterns of seasonal pilgrimage along the way. That this particular example remains so sparsely documented only adds to its character as the kind of place that persists through local memory rather than official record.

The broader tradition of holy wells in Clare is a long one. Across the county, such sites were typically associated with a local saint, often one whose name is preserved in the surrounding placename, and they served as focal points for "pattern" days, the Hiberno-English term for a patron saint's feast day gathering that combined prayer, socialising, and sometimes the leaving of votive offerings such as rags or coins. Killeenan as a placename likely derives from the Irish "Cill", meaning a small church or monastic cell, suggesting the area had an early ecclesiastical presence that would have shaped how a local water source came to be regarded as sacred. The well itself, like most of its kind, would have been understood as a source of healing, its waters credited with cures for ailments of the eyes, skin, or limbs depending on the tradition attached to it.