Enam 109-110:

•  Şimdi kendilerine bir mucize gösterilmesi halinde mutlaka inanacaklarına dair var güçleri ile Allah(cc)'a yemin ediyorlar. De ki:' Mucizeler yanlız Allah(cc)'ın elindedir'. O istedikleri mucize gelseydi bile, yine de inanmayacaklarının farkındasınız değil mi?
  Nasıl bugüne kadar inanmadılarsa, (bugün de imana mani tutum ve davranışları sebebiyle) kavrayış ve idraklerini(أَفْئِدَتَهُمْ وَأَبْصَارَهُمْ) ters çevirir başka yönlere çeker ve onları taşkınlıkları içinde gayesiz ve başıboş sürüklenip durmaya terk ederiz.
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  الْخُبْزُ يَفْأَدُهٗ “ ” (faadal-khubza bifaaduhu): heated bread in a fire.
  فَأَدَ اللَّحْمَ بِالنَّارِ “ ” (faadal-lahma binnaar): to roast meat in a fire.
  اَلْخُبْزُ الْمَفْءُ وْدُ “ ” (al-khubzal-maghnood): Bread that has been made in fire.
  اَلْفَءِيْدُ “ ” (al-faidu): fire {T}.
  Ibn Faris says it basically means fever, intensity and temperature.
  The Quran has used “ قَلْبٌ ” (qalb) and “ فؤََادٌ ” (fuwaad) to mean the heart.
  اَفْ ئِدَة “ ” (af-idah): the plural form of “ فؤََادٌ ” (fuwaad) (6:111).
  Raghib says that a heart is called “ فَؤَادٌ ” (fuwaad) when it has a sense of beating.
  Taj says that the actual meaning of “ فؤََادٌ ” (fuwaad) is to move and be moved.
  The heart is called “ فؤََا د ” (fu-aad) because it beats a lot. When emotions are in question then “ ”فؤََادٌ
  (fuwaad) will be used, and “ قَلْبٌ ” (qalb) would be used when the mind is in reference.
  ف اَدَ زَيْدًا“ ” (fada Zaid): Zaid’s heart.
  فَأَدَ الْخَوْفُ فُلَان اً“ ” (faadal-haufu fulana): a man turned coward because of fear {T}. These things are related to emotions not thoughts.
  But as mentioned above, this division of “ قَلْبٌ ” (qalb) and “ فؤََادٌ ” (fuwaad) is not a rule. Both are used to mean the heart. In the Quran it must be seen with reference to context at which point intellect and thought are meant and at which point emotions are referred.
  Here sight and hearing are sense perceptions and “ فؤََادٌ ” (fuwaad) means both mind and emotions. The mind because it concludes whatever the senses have informed it about, and emotions because if the  information provided by the senses is affected by emotions then man can never draw a right conclusion.
  This is why the Quran has laid stress on the use of both to develop conviction in the revelation. This means to evaluate and analyse the facts using the intellect and reasoning and to use emotions i.e. “ ”فؤََادٌ (fuwaad) to get it accomplished – this is all in reference to the Quranic Values (6:111-114).
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