Surely the primary, survival-effective uses of language involve stating alternatives and hypotheses. We don’t, we never did, go about making statements of fact to other people, or in our internal discourse with ourselves. We talk about what may be, or what we’d like to do, or what you ought to do, or what might have happened: warnings, suppositions, propositions, invitations, ambiguities, analogies, hints, lists, anxieties, hearsay, old wives’ tales, leaps and cross-links and spiderwebs between here and there, between then and now, between now and sometime, a continual weaving and restructuring of the remembered and the perceived and the imagined, including a great deal of wishful thinking and a variable quantity of deliberate or non-deliberate fictionalizing, to reassure ourselves or for the pleasure of it, and also some deliberate or semi-deliberate falsification in order to mislead a rival or persuade a friend or escape despair; and no sooner have we made one of these patterns of words than we may, like Shelley’s cloud, laugh, and arise, and unbuild it again.
In recent centuries we speakers of this lovely language have reduced the English verb almost entirely to the indicative mood. But beneath that specious and arrogant assumption of certainty all the ancient, cloudy, moody powers and options of the subjunctive remain in force. The indicative points its bony finger at primary experiences, at the Things; but it is the subjunctive that joins them, with the bonds of analogy, possibility, probability, contingency, contiguity, memory, desire, fear, and hope: the narrative connection. As J. T. Fraser puts it, moral choice, which is to say human freedom, is made possible “by language, which permits us to give accounts of possible and impossible worlds in the past, in the future, or in a faraway land.”