We may read a text that is linguistically sound, with well-structured sentences, connected by cohesive devices, and phrases that flow smoothly, yet we close the page wondering: What did the writer want to say?

Is linguistic correctness enough to make a text good? And is the connection between sentences alone sufficient to create an impactful text?

Perhaps the answer begins by distinguishing between two concepts that are often conflated, despite each having a different function in text construction: cohesion and coherence.

Cohesion refers to the linguistic links between parts of a text, i.e., the means that connect sentences to each other, such as pronouns, conjunctions, causal connectors, references, and repetition. These devices make the text coherent in terms of its linguistic structure and help the reader trace the relationships between its sentences.

As for coherence, it concerns the semantic connectedness, i.e., the logical relationship that binds ideas together, making each sentence an extension of the previous one and a prelude to the next, so that the text appears as a coherent intellectual unit, not just a series of correct sentences placed side by side.

Some writers may think that an abundance of cohesive devices is a sign of text quality, so they overuse phrases like 'therefore,' 'on the other hand,' 'in addition to that,' and 'in contrast,' while the ideas remain discordant, unified by no topic and governed by no sequence.

Consider this example:

The International Book Fair opened this morning and witnessed a large turnout of visitors. Therefore, oil prices rose in global markets, and participants emphasized the importance of environmental conservation.

From a linguistic perspective, the reader barely finds an apparent flaw. The sentences are linked by cohesive devices, and pronouns serve their function. However, the meaning stumbles from the second sentence onward, because the relationship between the opening of a book fair, rising oil prices, and environmental conservation is disconnected. Linguistic cohesion is present, but semantic coherence is absent.

In contrast, look at this text:

The International Book Fair opened this morning and witnessed a large turnout of visitors. Participating organizations also organized a number of cultural seminars that discussed the future of digital publishing. These seminars contributed to increased attendance at the fair, indicating a growing interest in reading.

Here, the cohesive devices did not change, but the relationship between ideas changed: the opening led to a discussion of events, and the events led to a result. Thus, linguistic cohesion and semantic coherence were combined, making the text more convincing and easier to understand.

In fact, semantic coherence can sometimes be achieved with fewer cohesive devices. Consider if we say:

Rain began at dawn. The streets filled with water. Traffic was disrupted. The relevant authorities began treating the affected areas.

The reader perceives the sequence of events effortlessly, because the relationship between the sentences is logical, even if there are not many cohesive devices between them.

Here, some writers overlook an important fact: the text does not begin with the sentence but with the idea. If the idea is confused, cohesive devices will not succeed in fixing it, just as tightening the joints of a bridge is useless if it leads to an incomplete road.

Therefore, the professional writer starts by organizing ideas before arranging words. He asks himself: What message do I want to convey? What sequence should the ideas follow? Then language comes later to reveal this structure, not to hide its flaws.

Thus, cohesion is not an end in itself but a means, and so is coherence. Both serve the text, but the quality of a text is not measured by their presence, but by the goal they lead to.

The discussion of cohesion and coherence remains a discussion of means, not ends. They explain how sentences are linked and how ideas are organized, but they do not answer the most important question: What did the text want to say? That is the question of meaning.

When we arrive at meaning, we have moved beyond the boundaries of structures and cohesive devices to broader horizons that have occupied linguists, rhetoricians, and philosophers for centuries, and continue to spark debate to this day.

Here arises a question no less profound: Which is prior and more deserving of attention in text creation:

Meaning or structure? Is it meaning that imposes its form on language, or structure that shapes meaning, directs it, and influences its reception?

That is an old question, on which neither philosophers, rhetoricians, nor even linguists have agreed, and perhaps never will.

Perhaps the difference in answers is what has kept this question alive to this day.

As for that... that is another matter.