Coleridge shows how there are images of heaven throughout the poem which are combined with references to darker and more evil places. Xanadu is an ancient wild place described as "a sunless sea" (Coleridge, pp. 342), suggesting a cave or dark place. An example of evil is shown in the phrase "by a woman who cries for her demon lover!" » (Coleridge, p. 342). The image that Coleridge gives of this poem shows his metaphysics, beyond the physical and the two sides of his dream. A dream can be both memorable and a nightmare. Coleridge personally experienced the feelings of good and evil while dreaming about what he later created.