والضرب الثاني من الغرض العائد إلى المشبه به بيان الاهتمام به
The second purpose concerning the comparison term is to show special concern for it.
In showing preoccupation, the speaker sees other things in terms of an object that occupies their thoughts or meets a pressing desire. Selecting that comparison term reveals mental attention or need, not necessarily a claim that the term excels in the shared quality.
A hungry person might compare a bright face to bread because roundness and brightness awaken thoughts of food. The stronger communicative effect is the speaker's attachment to bread rather than high praise for the face. This distinguishes preoccupation from reversed simile.