The poem 'Out of the Bag' is written in Tercets (apart from 1 Stanza), Christianity's concept of the Trinity (Father, Son, Holy Spirit) represents unity in three parts, linking to the poem’s interplay between physical reality, spiritual transcendence, and poetic imagination - This resonates with Heaney’s exploration of the sacred in the ordinary, particularly in references to Lourdes, healing rituals, and the sanctity of childbirth.