Metaphors are not only a convenient way for humans to communicate with each other and to gain insights into internal and external worlds, but are also an indispensable tool for thought. However, while metaphors have definite practical functions, they also inevitably emerge in conjunction with biases, narrow scopes, and even threats. In this paper, the metaphorical thoughts of the distinguished master of pragmatics, Jacob Mey, are traced from the perspectives of speech acts, pragmatic acts, embodied experiences, and ecology, and are categorized as follows: (1) Metaphor is a socially-oriented dynamic situational speech act; (2) Metaphor is a pragmatic act; (3) Metaphor is a practical activity rooted in the social context; (4) Metaphor is an ecological tool; and (5) Metaphor has two sides, with both “benefits” and “drawbacks” coexisting. Given the nature of metaphors as a “double-edged sword”, Mey has pointed out that, when using metaphors, it is necessary to reveal the social relations that they reflect and the mental and physical labor that they embodies. In order for metaphors to serve humanity more efficiently, we need to understand metaphors by having an open and inclusive attitude, to approach metaphors from a broad and multidimensional perspective, and to utilize metaphors rationally and in an appropriate manner.