Kierkegaard's concept of existential anxiety — Angst as the "dizziness of freedom" — pervades confessional poetry, especially Sylvia Plath's "The Bell Jar" (prose) and her poems like "Lady Lazarus," which dramatize the terror of selfhood without stable ground; Heidegger's analysis of anxiety as the mood in which Dasein confronts its own groundlessness and mortality is enacted in late Rilke, where beauty is inseparable from the terrifying (the angel who would destroy the human if it truly appeared); Auden's "The Age of Anxiety" (1947) takes its title directly from existentialist philosophy and maps the spiritual anxiety of modernity through a long dramatic eclogue of characters seeking meaning in a disenchanted world; A poet writing about climate change might frame ecological grief as philosophical anxiety in the Kierkegaardian sense — the vertigo of freedom and responsibility before an open and threatening future; Gerard Manley Hopkins's "terrible sonnets" (the "Dark Night" sequence) are sustained meditations on spiritual anxiety — the dread of God's absence and the self's contingency — making theology and psychology inseparable; Modernist fragmentation in Eliot and Pound can be read as a formal enactment of cultural anxiety — the anxiety of a civilization whose inherited structures have broken down and whose freedom is therefore vertiginous