What we mean by imagination
We call imagination the capacity to generate mental representations in the sensory realm when no external stimulus triggers them. It does not work from nothing: it operates on material stored in memory—what some authors call mnemonic material—and reorders that information to “perceive” what is not present. Viewing it this way, as a recombination rather than a simple invention, helps explain why imagination is both personal and recognizable to others.
It is worth insisting on its sensory character. We do not imagine only “in the abstract”: we imagine images, sounds, and textures. This is why a musician develops extraordinary auditory imagination, capable of internally hearing a complete work. The case of Beethoven is the recurring example: in the midst of losing his hearing, he continued to compose based on that inner listening. In a letter to his friend Karl Amenda, dated 1801, he recorded the deterioration of his “highest” faculty, his hearing, and his determination to overcome it. The music was not in the air he could no longer hear, but in his mental representation.
A social, not just individual, faculty
Although we feel it is intimate, imagination is nourished by the collective. Higher psychological processes develop in close relationship with a person’s culture and social interactions, so that what is imagined contains individual layers, but also shared values, inherited symbols, and group references. To imagine is, to a large extent, to do so with materials we receive from others.
This symbolic dimension is what philosophers of the imaginary, such as Gaston Bachelard, explore with their reflections on the weight of the four elements and primordial symbols, or Gilbert Durand in The Anthropological Structures of the Imaginary. From this perspective, imagination ceases to be an ornament of the mind and becomes a basic cognitive tool: without it, “human beings would hardly be what they are,” in the words of scholars in the field (Diz and Braña, 2014).
From “the madwoman of the house” to cognitive capacity
Historically, imagination had a bad reputation compared to perception, memory, or reasoning. “The madwoman of the house,” “the mistress of error,” “the infancy of man”: these labels reveal centuries of suspicion. Today, that disdain is difficult to maintain. Imagination fulfills concrete adaptive functions—completing incomplete objects, recognizing someone who has changed their appearance, anticipating scenarios—and continuously adjusts the desired to the real.
It also has a projective and creative role. The famous phrase attributed to George Bernard Shaw summarizes it well: if you have built a castle in the air, you have not wasted your time; that is where it should be, and now it is time to put the foundations under it. Every completed work was once something imagined. In that sense, imagination articulates what we think, what we feel, and what we accept as real in our environment.
Cannabis and perception: what is modified
Cannabis alters the perception of what we experience, and since imagination constantly works supported by perception, that alteration reaches it as well. Many people describe, under its effects, a greater ease in turning toward the inner world and a denser flow of mental images. Contrary to the cliché that it “dulls” or “slows down” thinking, many report the opposite: a sensation of a more active and intense imagination.
The pharmacological nuance is important. Cannabis is not a classic hallucinogen: unlike salvinorin A, psilocybin, mescaline, or LSD, it does not produce complete sensory hallucinations with that potency. But hallucination is only an extreme manifestation of imagination. Imagination also acts at a mnemonic level, recombining what is already in memory to produce ideas that were not there before. It is on that plane, rather than that of visions, where the effects of cannabis on the imaginative faculty usually reside.
Associations, creativity, and a persistent myth
Under the effects of cannabis, something stored in memory can be used by cognition in a way different from the usual, generating unexpected associations. These associative processes linked to substances are often dismissed as pathological or “erroneous” simply because they are chemically mediated. It is worth being wary of that automatic reading.
Culture has repeatedly linked creativity and substances: the daydreams attributed to Chopin, the allusions of Lewis Carroll in Alice’s journey, or the biographies—often mythologized—of figures like Freud, Francis Crick, Paul Erdős, Steve Jobs, Carl Sagan, or the Beat writers Jack Kerouac, Allen Ginsberg, and William S. Burroughs. These are suggestive anecdotes, but they deserve caution: genius is not explained by a substance, and correlation is not causation. Attributing a work to what its author consumed usually says more about our fascination than about how creativity works.
And here is the central point. Although associations are influenced by the active principles of cannabis, what emerges still springs from the personal: from the memory, culture, and biography of each individual. It is difficult to maintain that the imagination—the imagined thing itself—comes from the substance. Cannabis, at most, modulates the channel; the water that runs through it is one’s own.
Critical reading and harm reduction
Educational content written from a harm reduction perspective and with respect for individual freedom. It is not a substitute for advice from a healthcare professional and is not intended to encourage or condemn any drug use. Some honest clarifications:
- Effects are not uniform. The “intensification” of imagination is not universal: it depends on the person, the context, the expectation, and the composition of the product. In other people, cannabis generates dullness, circular thinking, or a loss of focus.
- The anxious reverse. That same ease in producing images can lead to anxiety, intrusive thoughts, or panic attacks, especially with high doses or high concentrations of THC.
- There are risk profiles. Consumption, especially early, intense, or in people with prior psychotic vulnerability, is associated with risks to mental health. This is not a minor detail compared to the romantic narrative of creativity.
- Beware of the creative myth. Feeling more images does not equate to producing better ideas; subjective euphoria and the actual quality of the result do not always coincide.
With those cautions, the underlying reflection holds: imagination is a human, social, and sensory faculty that no substance invents for us. In closing, the metaphor from the original essay serves well: imagination is to ontology what water is to life.
