Metaphor and Zen
Both the dream state and the waking state are originally the one real nature. The Buddha-dharma, even if it is a metaphor, is the real nature.
~Dogen, Shobogenzo, Muchu-setsumu (Expounding a dream in a dream), Trans. Hee-Jin Kim, Flowers of Emptiness, p.284
If the new empirical results are taken seriously, then people throughout our culture have to rethink some of their most cherished beliefs about what science and philosophy are and consider their values from a new perspective.
Above all, the key sticking point is the existence of conceptual metaphor. If conceptual metaphors are real, then all literalist and objective views of meaning and knowledge are false. We can no longer pretend to build an account of concepts and knowledge on objective, literal foundations. This constitutes a profound challenge to many of the traditional ways of thinking about what it means to be human, about how the mind works, and about our nature as social and cultural creatures.
~George Lakoff and Mark Johnson, Metaphors We Live By, p.273