What does Lessing think laughter is?

Healthy.

Doris Lessing, a Nobel Prize in Literature winner, believes that laughter is the definition of health. Lessing: Comedy should be improved through laughter, not ridicule. It is neither the bad habit used to make people laugh through comedy, nor the bad habit that only makes this ridiculous bad habit shine on themselves.

The absurdity advocated by Lessing is closely related to rationality. Without rational constraints, people tend to become ridiculous. In such an enlightenment era, Lessing's thought has played a great role in promoting the progress of historical trends, completely conforming to the general trend of dispelling darkness with rational light, and adding an important stroke to the construction of the blueprint of "rational kingdom".