what does this lyrical excerpt from Lauryn Hill’s “Black Rage” means?

Black rage is founded on two-thirds a person
Raping and beatings and suffering that worsens
Black human packages tied up in strings
Black rage can come from all these kinds of things.
Black rage is founded on blatant denial,
sweet economics, subsistent survival,
deafening silence and social control,
black rage is found in all forms in the soul,
When the dog bites, when the bee stings, when I’m feeling sad,
I simply remember all these kinds of things, and then I don’t fear so bad