What was the overall purpose of the Declaration of the Rights of Man?

The Declaration of the Rights of Man and Citizen is a fundamental document of the French Revolution, defining the individual and collective rights of all the estates of the realm as universal. Influenced by the doctrine of natural rights, the rights of Man are universal: valid at all times and in every place, pertaining to human nature itself. Although it establishes fundamental rights for French citizens and all men without exception, it addresses neither the status of women nor slavery; despite that, it is a precursor document to international human rights instruments.

The Declaration of the Rights of Man is "to guarantee a good life to all citizens.