Conclusion
Cohesive links go a long way toward explaining how the sentences of a text hang together, but they do not tell the whole story.
It is possible to invent a sentence sequence that is highly cohesive, but nonetheless incoherent.
e.g. a week has seven days. Every day I feed my cat. Cats have four legs. The cat is on the mat. Mat has three letters.
A text has to be coherent as well as cohesive, in that the concepts and relationships expressed should be relevant to each other. Thus, enabling us to make plausible inferences about the underlying meaning.
BOOKdiscourse_analysis_for_language_teachers_by_michael_mccarthy.pdf