The paper reviews the concept of ontological (in)security as an analytical tool to shed light on (dis)continuous narratives of selfhood engendered by geopolitics. It contributes to a growing body of empirically grounded research by addressing the necessity of a multi-dimensional understanding of indivi-duals’ senses of ontological (in)security. The paper is based on qualitative research conducted in Berlin with participants of various age groups and argues that ontological security and insecurity are negotiated through spatial and temporal means. It demonstrates that geopolitical caesuras, as powerful interge-nerational geographical imaginations, function as time-space anchors of ontological (in)security. It further studies this multi- dimensionality by conceptualising temporal and spatial means of ontological (in)security and their relational interconnected-ness to unsettle the binaries of global and local, and past and present. Finally, this paper recommends reconsidering the usage of ontological (in)security as an analytical tool to mobilise a feminist approach towards geopolitics.