Previous studies on Ebi Yeibo’s use of metaphors are literary, neglecting the cognitive processes that underpinned the use of these metaphors in texts. This study showed that a cognitive exegesis of Yeibo’s poems provided a better platform for understanding the cognitive-thought pattern of the poet. The study paid attention to the cognitive structures that underpin Yeibo’s metaphorical use of language, and the way metaphor, which is one of the cognitive devices, facilitates the comprehension of abstract concepts in poetry. Yeibo explored metaphors from the rich archive of different domains of life to enunciate plaguing issues in the Niger-Delta region. Despite the myriads of interpretation of his metaphors by scholars, the metaphors are yet to fully gain interpretation on the basis of mental spaces. The methods of analysis in the study were primarily descriptive and interpretative in nature. A critical reading of the poems was done to select fifteen ontological metaphors, which were analysed with the insight from Lakoff George and Mark Johnson’s conceptual metaphor theory. The theory served as a cognitive springboard for the researcher to be on equal mental space as the poet. The research showed that Yeibo’s employment of conceptual metaphors in his poetry has helped the readers to understand the underlying meanings in his messages by disambiguating the messages; his application of natural forces and abstract concepts as agent of change revealed his protest against the proponents of the prevailing predicaments of the Niger-Delta people; the poet’s employment of source and target domains signaled the sensitivity of Nigerians to the daffy nature of the Niger- Delta political gladiators and the poet stylistically relied on ontological metaphors to convey critical issues on the repression and suppression of the Niger-Delta people. In all, Yeibo’s employment of abstract and physical domains invoked a crystal understanding of the plight of the Niger-Delta people.