Each glance, thought, or detection of a smell begins in our brain. The relevant nerves interpret the transmitted message via an electrical current. When we look at a glass, we recognize it as a glass only because the brain’s nerves interpret it as such. When we think about something, these nerves establish coordination with and pass electrical currents through each other. We imagine that the image of the glass forms in our brain; however, this image reaches the brain solely as an electrical signal. Moreover, the brain does not contain the slightest trace of this image. In other words, we perceive the outside world only through the processes taking place among these nerve cells. This being the case, the facts that 10 billion nerve cells have been carefully placed within the brain, are means by which everything related to us is controlled, and that they allow us to perceive a vivid world are great miracles. Such miracles are simple things for Almighty Allah, Who created humanity as well as the causes in question from nothing.
This system is a great secret that we are still striving to unravel. At a time when no scientist can claim to fully understand the brain and when the whole system points to a sublime creation, how can anyone seriously assert that blind chance is a creative force? With His mercy, Allah continually reminds us of His might and sublime creative artistry by means of the entities He creates. Believers who see and understand all of this will attain salvation in this world and in the Hereafter.
Everyone in the heavens and Earth requests His aid. Every day He is engaged in some affair. So which of your Lord’s blessings do you both then deny? (Surat al-Rahman, 29-30)