In this post InshAllah, we see how symbols relate to metaphor.
A symbol is something that represents an idea, a process, or a physical entity. The purpose of a symbol is to communicate meaning. For example, a red octagon may be a symbol for “STOP”. On a map, a picture of a tent might represent a campsite. Numerals are symbols for numbers. Personal names are symbols representing individuals. A red rose symbolizes love and compassion. [wikipedia]
Symbols are more general and widely renown and referred-to than metaphors. They might be concrete images or objects, or they might be scribblings created purposely to denote something (numerals and alphabets are obvious examples). Symbols when used as means of expression, however, are derived as metaphors, whereas others may be derived as metonymies.
Symbols that work as metaphors
أَلَمْ تَرَ أَنَّ اللَّـهَ أَنزَلَ مِنَ السَّمَاءِ مَاءً فَسَلَكَهُ يَنَابِيعَ فِي الْأَرْضِ ثُمَّ يُخْرِجُ بِهِ زَرْعًا مُّخْتَلِفًا أَلْوَانُهُ ثُمَّ يَهِيجُ فَتَرَاهُ مُصْفَرًّا ثُمَّ يَجْعَلُهُ حُطَامًا ۚ إِنَّ فِي ذَٰلِكَ لَذِكْرَىٰ لِأُولِي الْأَلْبَابِ
إِذْ قَالَ يُوسُفُ لِأَبِيهِ يَا أَبَتِ إِنِّي رَأَيْتُ أَحَدَ عَشَرَ كَوْكَبًا وَالشَّمْسَ وَالْقَمَرَ رَأَيْتُهُمْ لِي سَاجِدِينَ
إِنِّي وَجَّهْتُ وَجْهِيَ لِلَّذِي فَطَرَ السَّمَاوَاتِ وَالْأَرْضَ حَنِيفًا ۖ وَمَا أَنَا مِنَ الْمُشْرِكِينَ
In the above ayah, Hazrat Ibrahim realizes and loudly proclaims the Oneness of Allah after having considered and logically rejected cultural idols. Here the word ‘wajh‘ __ ‘face’ __ a common symbol throughout Quran↓ and other literature obviously has a metonymic relation to it’s subject. Face is a stand-in, a representative, of the human presence, not its metaphorical ‘likening’.
In the future we will re-encounter examples of Qur’anic symbols, InshaAllah.
Notes
For an interesting discourse on the use of ‘wajh’ in the Qur’an, see: Ayoub, M. M., (2000), Literary exegesis of the Qur’an: The case of Al-Sharif Al-Radi, in Litereary Structures of Religious Meaning in the Qur’an, Ed. by Issa Boullata; Richmond, Surrey, UK: Curzon Press. Retrieved online at: http://books.google.ca/books?id=SdgaD-7C6TkC&pg=PA298&dq=wajh+metaphor&hl=en&sa=X&ei=W05jUdi6N-O0yAG5yoGQDQ&ved=0CDwQ6AEwAg#v=onepage&q=wajh%20metaphor&f=false