Actual Activities
They were separated. It appears that the spirits or essences gain a new rise within these cavities, allowing them to be driven through all the parts of the body. It is very likely that the blood is too weak to push the separated spirits through so far and through so many narrow tubes to perform such significant work. Since the spirits are less hindered and more free from all sticky and binding substances, unlike when they were united with the blood, this rise or swelling in the spirits, because they consist of so many and various particles, can be more easily understood. It should also be noted that the air inhaled through the nose, reaching the said cavities, helps significantly with this process; and similarly affects the blood. Therefore, sometimes foul smells and vapors that remain in the air, when inhaled, cause significant changes in the rising of the spirits, aiding people somewhat in their life duration. This wouldn't be so easily or seemingly possible if something were not to pass through the nose into the said cavities of the brains. These animal-like spirits are continually driven through the nerves of the entire body, just as blood is driven through the arteries. This is not difficult to comprehend when one notes that the nerves, other than as extended brain parts, with their vessels and tubes of the brain, go to all the limbs and muscles; thus providing the means by which the artistic and powerful tool of our body achieves its primary existence of life.