Lotus love warmth. If you pull your lotus container out of the pond and place it in full sun in the spring (after frost danger is over), the lotus will grow faster because it will warm up more. Keep some water over the soil, and return it to the pond by early summer, once warm weather is here to stay.
The cerebral cortex is the layer of the brain often referred to as gray matter. The cortex (thin layer of tissue) is gray because nerves in this area lack the insulation that makes most other parts of the brain appear to be white.
The image below shows a cross section of the brain, with the cerebral cortex shown as the dark outline. The somatosensory cortex is a part of the cerebral cortex and is located in the middle of the brain as shown below. Below is the somatosensory cortex, highlighted in red in the brain.