The cover depicts the limbic system, which is the anatomical and functional "substrate" of emotions. This structure may contain phylogenetic memories of the human species and serves as a seat for instinctive impulses that, in the individual's life evolution, will determine their complex higher behavior.
The connections of the limbic system with other areas of the brain ensure the necessary emotional charge of every activity, interest, or goal of humans. Dysfunctions of the limbic system are involved in diseases such as epilepsy, depression, etc.
Technological advancement, progress in neurosurgery, and other neurosciences will gradually allow more effective treatments for these diseases, deepening our knowledge of the limbic system, and simultaneously improving our understanding of our emotional world.