如何適當地了解和詮釋一首詩實非易事，因為要詮釋一首詩並非只是解析其語言詞組或了解其組成架構而已。要找出詩中蘊含的意義除了要了解詩中所運用的各種隱喻之外，還要辨析詩人運用什麼認知策略來讓隱含的意義得以探索和彰顯。本文以〈己亥雜詩〉的第五首詩為例，並以心理空間理論 (Fauconnier 1994, 1997; Fauconnier and Turner 2002) 為基礎來說明一首詩的隱喻詮釋方法。此外，本文認為事件框架、意象基模、心理空間等認知概念，都為本詩的隱喻理解以及詮釋提供了重要的參考。

To properly understand and interpret the metaphors of a poem is never easy since it is not a mere result of understanding the linguistic constituents or structures of the poem. To find the connotative meaning of the poem involves a complex process of figuring out what metaphors the poem uses, and identifying what cognitive strategies the poet uses to make that connotative meaning clear and understandable. This paper takes the fifth poem from the book Miscellaneous Poems of the Year Jihai as example to decipher the profound metaphoric meanings of the poem based on the framework of Mental Space Theory (Fauconnier 1994, 1997; Fauconnier and Turner 2002). In this paper, it has been suggested that the cognitive concepts such as event frames, image schemas, mental spaces, etc. all provide important clues for understanding the poem.