It is like an immense computer. Human brain contains some ten to the power ten nerve cells which can act in ten to the power eight hundred ways. Compare this with the total number of atoms in the universe which is estimated as ten to the power one hundred only. Thus each human mind is capable of storing the entire data for recreating the entire universe. But soul is not the brain.
Brain is only material - a part of the human body.
It is the hardware. It is renewed in that it revises its entire material on the basis of experience constantly. It updates itself instantly in time. When a man dies, his soul is separated and maintains its identity. The independent existence of the soul outside the body is corroborated in various places in the Bible.