Higher eloquence does not require an accumulation of obscure metaphors and inaccessible allusions. Qur’anic speech enables ordinary listeners to grasp its essential point, while trained readers can also recognize finer syntactic and rhetorical relationships.
Accessible address means that key words and the central intention are not wholly beyond the audience. Subtle insights can still be expressed in a way that leaves the basic message intelligible.
The distinction: depth is not the same as obscurity. A phrase may communicate clearly at the basic level while rewarding closer attention to its semantic and rhetorical layers.