The Contemporary Theory: Some Examples

Let us now turn to some examples that are illustrative of contemporary metaphor research. They will mostly come from the domain of everyday conventional metaphor, since that has been the main focus of the research. I will turn to the discussion of poetic metaphor only after I have discussed the conventional system, since knowledge of the conventional system is needed to make sense of most of the poetic cases. The evidence for the existence of a system of conventional conceptual metaphors is of five types:

-Generalizations governing polysemy, that is, the use of words with a number of related meanings.

-Generalizations governing inference patterns, that is, cases where a pattern of inferences from one conceptual domain is used in another domain.

-Generalizations governing novel metaphorical language (see, Lakoff & Turner, 1989).

-Generalizations governing patterns of semantic change (see, Sweetser, 1990).

-Psycholinguistic experiments (see, Gibbs, 1990, this volume).

We will primarily be discussing the first three of these sources of evidence, since they are the most robust.

Conceptual Metaphor

Imagine a love relationship described as follows: Our relationship has hit a dead-end street.
Here love is being conceptualized as a journey, with the implication that the relationship is stalled, that the lovers cannot keep going the way they've been going, that they must turn back, or abandon the relationship altogether. This is not an isolated case. English has many everyday expressions that are based on a conceptualization of love as a journey, and they are used not just for talking about love, but for reasoning about it as well. Some are necessarily about love; others can be understood that way: Look how far we've come. It's been a long, bumpy road. We can't turn back now. We're at a crossroads. We may have to go our separate ways. The relationship isn't going anywhere. We're spinning our wheels. Our relationship is off the track. The marriage is on the rocks. We may have to bail out of this relationship. These are ordinary, everyday English expressions. They are not poetic, nor are they necessarily used for special rhetorical effect. Those like Look how far we've come, which aren't necessarily about love, can readily be understood as being about love. As a linguist and a cognitive scientist, I ask two commonplace questions:

Is there a general principle governing how these linguistic expressions about journeys are used to characterize love?
Is there a general principle governing how our patterns of inference about journeys are used to reason about love when expressions such as these are used?

The answer to both is yes. Indeed, there is a single general principle that answers both questions. But it is a general principle that is neither part of the grammar of English, nor the English lexicon. Rather, it is part of the conceptual system underlying English: It is a principle for under standing the domain of love in terms of the domain of journeys. The principle can be stated informally as a metaphorical scenario: The lovers are travelers on a journey together, with their common life goals seen as destinations to be reached. The relationship is their vehicle, and it allows them to pursue those common goals together. The relationship is seen as fulfilling its purpose as long as it allows them to make progress toward their common goals. The journey isn't easy. There are impediments, and there are places (crossroads) where a decision has to be made about which direction to go in and whether to keep traveling together. The metaphor involves understanding one domain of experience, love, in terms of a very different domain of experience, journeys. More technically, the metaphor can be understood as a mapping (in the mathematical sense) from a source domain (in this case, journeys) to a target domain (in this case, love). The mapping is tightly structured. There are ontological correspondences, according to which entities in the domain of love (e.g., the lovers, their common goals, their difficulties, the love relationship, etc.) correspond systematically to entities in the domain of a journey (the travelers, the vehicle, des tinations, etc.). To make it easier to remember what mappings there are in the conceptual system, Johnson and I (lakoff and Johnson, 1980) adopted a strategy for naming such mappings, using mnemonics which suggest the mapping. Mnemonic names typically (though not always) have the form: TARGET-DOMAIN IS SOURCE-DOMAIN, or alternatively, TARGET-DOMAIN AS SOURCE-DOMAIN. In this case, the name of the mapping is LOVE IS A JOURNEY. When I speak of the LOVE IS A JOURNEY metaphor, I am using a mnemonic for a set of ontological correspondences that characterize a map ping, namely:

THE LOVE-AS-JOURNEY MAPPING: -The lovers correspond to travelers.; -The love relationship corresponds to the vehicle.; -The lovers' common goals correspond to their common destinations on the journey.; -Difficulties in the relationship correspond to impediments to travel.

It is a common mistake to confuse the name of the mapping, LOVE IS A JOURNEY, for the mapping itself. The mapping is the set of correspondences. Thus, whenever I refer to a metaphor by a mnemonic like LOVE IS A JOURNEY, I will be referring to such a set of correspondences. If mappings are confused with names of mappings, another misunderstanding can arise. Names of mappings commonly have a propositional form, for example, LOVE IS A JOURNEY. But the mappings themselves are not propositions. If mappings are confused with names for mappings, one might mistakenly think that, in this theory, metaphors are propositional. They are, of course, anything but that: metaphors are mappings, that is, sets of conceptual correspondences. The LOVE-AS-JOURNEY mapping is a set of ontological correspondences that characterize epistemic correspondences by mapping knowledge about journeys onto knowledge about love. Such correspondences permit us to reason about love using the knowledge we use to reason about journeys. Let us take an example. Consider the expression, We're stuck, said by one lover to another about their relationship. How is this expression about travel to be understood as being about their relationship? We're stuck can be used of travel, and when it is, it evokes knowledge about travel. The exact knowledge may vary from person to person, but here is a typical example of the kind of knowledge evoked. The capitalized expressions represent entities n the ontology of travel, that is, in the source domain of the LOVE IS A JOURNEY mapping given above. Two TRAVELLERS are in a VEHICLE, TRAVELING WITH COMMON DESTINATIONS. The VEHICLE encounters some IMPEDIMENT and gets stuck, that is, makes it nonfunctional. If they do nothing, they will not REACH THEIR DESTINATIONS. There are a limited number of alternatives for action:

They can try to get it moving again, either by fixing it or get ting it past the IMPEDIMENT that stopped it.
They can remain in the nonfunctional VEHICLE and give up on REACHING THEIR DESTINATIONS.
They can abandon the VEHICLE.
The alternative of remaining in the nonfunctional VEHICLE takes the least effort, but does not satisfy the desire to REACH THEIR DESTINATIONS.

The ontological correspondences that constitute the LOVE IS A JOURNEY metaphor map the ontology of travel onto the ontology of love. In doing so, they map this scenario about travel onto a corresponding love scenario in which the corresponding alternatives for action are seen. Here is the corresponding love scenario that results from applying the correspondences to this knowledge structure. The target domain entities that are mapped by the correspondences are capitalized:

Two LOVERS are in a LOVE RELATIONSHIP, PURSUING COMMON LIFE GOALS. The RELATIONSHIP encounters some DIFFICULTY, which makes it nonfunctional. If they do nothing, they will not be able to ACHIEVE THEIR LIFE GOALS. There are a limited number of alternatives for action:

They can try to get it moving again, either by fixing it or getting it past the DIFFICULTY.
They can remain in the nonfunctional RELATIONSHIP, and give up on ACHIEVING THEIR LIFE GOALS.
They can abandon the RELATIONSHIP.

The alternative of remaining in the nonfunctional RELATIONSHIP takes the least effort, but does not satisfy the desire to ACHIEVE LIFE GOALS. This is an example of an inference pattern that is mapped from one domain to another. It is via such mappings that we apply knowledge about travel to love relationships.

Metaphors are not mere words

What constitutes the LOVE-AS-JOURNEY metaphor is not any particular word or expression. It is the ontological mapping across conceptual domains, from the source domain of journeys to the target domain of love. The metaphor is not just a matter of language, but of thought and reason. The language is secondary. The mapping is primary, in that it sanctions the use of source domain language and inference patterns for target domain concepts. The mapping is conventional, that is, it is a fixed part of our conceptual system, one of our conventional ways of conceptualizing love relationships. This view of metaphor is thoroughly at odds with the view that metaphors are just linguistic expressions. If metaphors were merely linguistic expressions, we would expect different linguistic expressions to be different metaphors. Thus, "We've hit a dead-end street" would constitute one metaphor. "We can't turn back now" would constitute another, entirely different metaphor. "Their marriage is on the rocks" would involve still a different metaphor. And so on for dozens of examples. Yet we don't seem to have dozens of different metaphors here. We have one metaphor, in which love is conceptualized as a journey. The mapping tells us precisely how love is being conceptualized as a journey. And this unified way of conceptualizing love metaphorically is realized in many different linguistic expressions. It should be noted that contemporary metaphor theorists commonly use the term metaphor to refer to the conceptual mapping, and the term metaphorical expression to refer to an individual linguistic expression (like dead-end street) that is sanctioned by a mapping. We have adopted this terminology for the following reason: Metaphor, as a phenomenon, involves both conceptual mappings and individual linguistic expressions. It is important to keep them distinct. Since it is the mappings that are primary and that state the generalizations that are our principal concern, we have reserved the term metaphor for the mappings, rather than for the linguistic expressions. In the literature of the field, small capitals like LOVE IS A JOURNEY are used as mnemonics to name mappings. Thus, when we refer to the LOVE IS A JOURNEY metaphor, we are refering to the set of correspondences discussed above. The English sentence Love is a journey, on the other hand, is a metaphorical expression that is understood via that set of correspondences.

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