When a mother breastfeeds her newborn infant, the process is referred to as nursing the infant. Mothers nurse their infants because human milk is deemed to be the best possible form of nourishment for newborns and children for up to one year after their birth. Infants cannot chew because they do not yet have teeth, and their alimentary canals are not yet fully formed to enable them to digest foods. In contrast, the mother's milk has certain nutrients that do not need to be chewed or digested. They are absorbed directly through the walls of the stomach and alimentary canal, and thereby nourish the newborn.
Physically, Satan's body functions in a manner that is similar to that of a newborn infant. His brain no longer is fully functional, and therefore he is unable to understand even basic concepts. His alimentary canal has shut down so that whatever he eats must be directly absorbed through its walls, otherwise it is expelled. His reflexes are still functional, but they also will begin to diminish over time. His body is in a state of decline. As the spiritual engine that fuels and propels his body deteriorates, his body also will deteriorate. That deterioration process will continue at least for the next one thousand years until the conclusion of Jesus' millennial reign.
When the spiritual aspect of Satan's existence has reached its ebb, his body also will have reached its ebb and will exist in what we might refer to as a persistent vegetative state. He no longer will be communicative. For now, his capacity for physical survival is enhanced directly through human beings who give him sustenance by transferring to him their power and authority. They believe him to be powerful because their see in him the reflection of their power and their authority. When eventually they recognize that what they see in him are the seeds of their power and authority, they will have arrived at a place of true wisdom.