What is the purpose for stage direction

Stage directions serve many functions, but their primary purpose is to guide actors' movements on the stage, called blocking. These notations in the script, written by the playwright and set aside with brackets, tell the actors where to sit, stand, move about, enter, and exit

answer: metaphor: because there is a comparison between the treasures spread on the ground and the evil seed of adam drifting from the shoreline  

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yh it is right

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