What is the meaning of song life a worth singing?

"Life Is Worth the Living" is a song written by Harry Ruby with lyrics by Bert Kalmar for the Marx Brothers movie Horse Feathers (1932). In the film, Chico Marx performs it on the piano in a night club scene, accompanying Groucho Marx's rendition of "Lydia, the Tattooed Lady". It also appears sung and danced in Paramount on Parade (1930.

This song tells stories about hard but meaningful life. As the title goes "Life is Worth the Living", that implies the difficulties will always come alongside joy and happiness making every struggle worthy.