An Overview of the Rhetorical Importance of Sign Language

Abstract

Allah Almighty has endowed human beings not only with intellect but
also with diverse expressive abilities. One of these is the ability to
express emotions not just verbally but also through gestures and body
movements, which serve as powerful tools for conveying inner feelings
in an effective and implicit manner. These gestures often carry broad
meanings with psychological and educational foundations. Despite
being non-verbal, gestural language also serves as a medium for
expressing human thoughts and ideas. Every culture has developed its
own set of gestures to communicate agreement, rejection, respect,
happiness, sorrow, grief, love, acceptance, honor, mockery, and more.
Some of these gestures have achieved universal recognition, while
others remain specific to individual communities for mutual
understanding. Although rhetoric is traditionally associated with verbal
language, gestural language holds an even higher rhetorical status. It is
not limited to people with disabilities; rather, it complements spoken
language. Research shows that verbal communication constitutes only
30–40% of human interaction, whereas gestural language accounts for
60–70%. The foundations of gestural language were laid by the Greeks
and later developed by the Romans. With the rise of Islamic civilization,
it reached new heights of sophistication. These gestures appear in three
forms: conventional, pictorial, and instinctive. The focus here is on
instinctive gestures, which carry metaphorical and figurative meanings.
Gestural expressions are also found in the Holy Qur’an, highlighting
their effectiveness in conveying deep meaning. In literature, such
gestures are used as artistic and emotional elements to enhance
rhetorical beauty. For example:

"Eventually, he will bite his own hand in regret."
"Whatever one does to others will eventually return to him."