Why does the poet compare the world with a stage?
The poet compares the world to a stage because he considers all men and women like the actors and actresses in the drama who play role on the stage ie in the world.
In what sense are we the players on the world stage?
We are the players on the world stage in the sense that we perform different roles here on this world stage. We have seven different roles in our lives to play and at last, we exit from this world stage.