Rejects the assumption that the idea of poison is central to Muirchú's original account of this miracle (as argued for example by Thomas O’Loughlin, ‘Muirchú's poisoned cup: a note on its sources’, in Ériu 56 (2006), pp. 157–162), and suggests this story rather symbolizes the exclusion of incompatible aspects of early Irish society during the process of conversion to Christianity.
Provides further medieval Welsh parallels to the passage referred to by Simon Rodwayin Studi Celtici 7.191 ff.; also suggests Welsh ynfydion may have a parallel in the Irish dám dásachtach of Togail Bruidne Da Derga.