How does the Great Ethiopian Renaissance Dam affect Ethiopia’s ontological security? This study proposes that the ontological security perspective must be comprehended within the analysis of the dam’s importance, in order to grasp certain dimensions of security which otherwise could remain unnoticed. Thus, the fact that Ethiopia has executed the dam’s building, despite the regional controversy and different forms of attacks it has implied – and was expected to imply in the initial case - suggests that the traditional security perspective is not sufficient in order to understand the dam’s causes as well as the long-term determination regarding the dam’s execution. Hence, by adopting Steele’s and Mitzen’s two conceptualizations of the biographical narrative, as well as Carol Bacchi’s conceptualisation of meaning-making within representation, the dam’s ontological significance is analysed.   I argue that the Great Ethiopian Renaissance Dam constitutes a meaningful symbol within the Ethiopian biographical narrative, due to the grand political and emotional significance it has been interlinked with. Further on, I argue that this is partly due to the meaning and emphasis which the Ethiopia’s State agents have expressed in conjunction with the comprehending needs which the dam is aimed to satisfy. I conclude by proposing a discussion to weather the dam could be considered to increase the ontological security of Ethiopia, or in fact weaken it.