What is a theme that would be relevant in literature across an extended time period in history, regardless of what time period it is being used in? What is a theme that would be relevant in literature across an extended time period in history, regardless of what time period it is being used in?

The theme is the implication revealed or aimed at within the plot of some story. Many a times theme is said to be the message conveyed by different write-ups. Hidden morals are the output of any theme utilized in a plot. Writers use a main idea, said to be the theme, to create content in regards to multiple aspects of life.

Some of the everlasting themes, that I think would never degrade and remain timeless are stated below:

Materialism Individuality Dejection Hope Ethics Nature Violence; and more.

However, one theme is asked here. So, I would say, "the theme of nature" is everlasting.

i would say grief and mourning, or love. primal emotions felt by all humans.