“When, in the 19th century, the ocean of the Unconscious was discovered, Freud, approaching the island of Repression, sensed that far away, through the mist, the steep cliffs of the 'Rock of biology' were forming.

However, the neurosciences of that era prohibited navigation towards these uncharted waters. Today, thanks to neuroimaging techniques and ethological data, these depths can be explored.

The researcher then uncovers another unconscious, this time biological, which differs from the Freudian one and simultaneously connects to it in a conflicting manner, like two horses pulling the same chariot in opposite directions.”