Abstract
The monstrous image created by William Blake in 'The Tyger' left the world wrapped in an apocalyptic vision that creates an epiphany of unknown Romantic potentials symbolised in 'The Tyger'. The apocalyptic vision, deeply rooted in Christian religion, develops into an ominous harbinger of the destruction of the modern world portrayed in W.B. Yeats' 'The Second Coming'. The image of the beast marks the difference between two ages, one with strong potentials and the other with fear and resident evil unexplained. I argue that the apocalyptic theory in Christianity has an impact on the development of the image of the beast in both poems, an impact that highlights man's retreat from Nature into the modern world which may fall apart because of beastly practices.