The famous neurologist Professor Andrew Newberg actually takes photographs of what believers call ‘the presence of God’. He invites people to meditate and pray in a secluded room. Then, when they are most deeply absorbed in their devotions, he injects a tracer that travels to the brain and reveals its activity. These experiments have revealed that there is a small region near the back of the brain that, during intense prayer and meditation, becomes a quiet oasis of inactivity. It produces a feeling of tranquility, and, if the prayer is very intense, a sense of union with the cosmos; a union which believers call the presence of God.
It just confirms what people of faith have always known by experience; that what God says in the scriptures is true: ‘Be still, and know that I am God.’