The brain is only a physical instrument. It stores imprints and the various sensory and other perceptions, as you store things in a room. You can compare it to a computer that stores and processes data. But it has no independent choices of its own. For example, one may store a film on the computer to watch another day. But we cannot say that the film is a part of the computer. It exists independently of it. The computer is only one of the means to store and replay it. So too, the brain does store the impressions of the subconscient but it is itself not the subconscient. The subconscient is an independent plane of consciousness and it uses the brain, or other means, as in plants, etc, as an instrument for its operations.
Affectionately,
Alok Da
