This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The word 'stage' is being compared to 'world' where world means 'life' itself. It is stated in the first line of the poem 'all the world's a stage' where all human beings are the actors and actresses and have their own life to portray.

Hope it Helps =)
1 5 1