It was never that clear! One of the most amazing shots i have ever seen.--White matter is the tissue of the brain and spinal cord that is pale in color and consists mostly of nerve fibers that have myelin sheath around, it helps in the transmission of this information from the brain to other regions of the body. While Grey matter is the major component of the human brain that has several nucleon bodies, neuropil, and other parts that help in working on body parts, it helps in the Processing and connections between data and the body parts take place.