Why don't u look it up in the dictionary and see ?
It symbolizes his deepest fears and violent plans
Perhaps Dunbar uses the image of a mask as wearing a face allows us to conceal our face - enabling us to hide any expression or emotion. In his poem, he mentions how black people felt the need to appear as content or happy when surrounded by people who were white - especially when they felt the opposite. The mask represents the false expressions the blacks had to wear.
Answer:
speed I saw that it when I did an research project when happens to my projext