A small and simple excursion into neuroscience:
The human brain contains approximately 86 trillion nerve cells, all connected in a
network of over 100 trillion "connections" (synapses).
The nerve cells in the brain (neurons) are formed during the first three weeks of fetal life. This process is called neurogenesis.
The connections between the individual neurons are called "neural pathways".
Every single neural pathway is connected to behaviors or thoughts.
And every time you repeat a behavior, or even a thought, this nerve pathway becomes thicker and stronger.
Science has proven,
"Nerve cells that fire together, wire together"
The brain's ability to forge new connections and pathways is called neuroplasticity.
The brain itself cannot distinguish between reality and imagination.
The "rewiring" of your brain is a matter of your attitude as well as your action.