The second discipline is introduced through this aim:
الِاحْتِرَازُ عَنِ التَّعْقِيدِ الْمَعْنَوِيِّ
Avoiding conceptual obscurity.
Conceptual obscurity occurs when the wording may be parsed, but the route from the expression to its intended meaning is needlessly difficult. This is not identical to merely using an unfamiliar word.
Bayan examines modes of conveying meaning, such as simile, figurative usage, and allusion. Proper contextual clues help a reader reach the intended sense.