For the past twenty years, Jean Delumeau has been researching the fears of Westerners in the past, then the remedies they brought, and finally their dreams of happiness. This " long and solitary "journey, designed to " better discover, in lucidity, the hope we still have and the meaning of our destiny ", coincides with his lectures at the Collège de France, of which the final lesson is a summary.
" Men's dreams are part of their history, and explain many of their actions ".
