Holy wells are among the oldest and most persistent features of the Irish countryside, places where pre-Christian veneration of water sources folded gradually into Christian practice, acquiring patron saints, patterns days, and the small votive offerings, rags, coins, rosary beads, that still appear at many such sites today. Clare is particularly dense with them, the county's limestone terrain threading water through the rock in ways that make springs feel genuinely uncanny.

The well at Kilseily carries the name of the parish in which it sits, a parish name that may itself derive from the Irish "Cill Saighle", though the etymology is uncertain. Beyond its location and its classification as a holy well, the formal record currently holds little that can be shared. What is documented is the fact of its existence and its recognition as a monument, placing it in a long lineage of sites considered significant enough to mark and protect, even when the full story of who used them, and why, and for how long, remains incompletely told.