This is a bullaun stone, a type found at early Christian and prehistoric sites across Ireland, characterised by one or more cup-shaped hollows ground or carved into the rock. Their precise function remains debated; they have been associated with grinding, with ritual use of water, and with the kind of localised devotional practice that gathered around holy wells and ancient ecclesiastical sites. This particular example is unshowy even by bullaun standards, rising only about twenty centimetres above the surrounding soil, but the basin itself is neatly executed, roughly thirty-eight centimetres across and eighteen centimetres deep, positioned toward the narrower western end of the trapezoidal stone.

The boulder lies approximately a hundred and ten metres to the east-southeast of Templebegnaneeve, an early Christian oratory. An oratory, in this context, refers to a small, simple place of prayer, typically associated with the early Irish church and often connected to a founding saint or monastic settlement. The spatial relationship between the bullaun and the oratory is telling. Objects of this kind were rarely placed at random; their proximity to ecclesiastical remains suggests the stone formed part of a broader sacred landscape, even if the exact nature of that relationship is now difficult to recover. The granite itself is earthfast, meaning it is set into the ground rather than placed freely on the surface, which has helped it remain in situ across the centuries.