Why do scene generally change?

The choreography of scene changes is a vital part of the smooth flow of the production, and can make or break a show.

the most likely reason why dante included the names of historical figures in his well-known masterpiece the divine comedy is because he was trying to expose his own historical judgement to the figures. he settles different characters of the occidental culture in parts of the hell, purgatory and paradise constituting a spiritual judgment according to his thought.