anger

Outside switch lights a fire
Internal kindling fuels the desire
Feel it rise feel it mingle
Leaps to chest so free and nimble
Hello old friend, I love to hate
Though you cause such damage
You provide a comfort I can't debate.
fists are clenching muscles tense
Senew, blood sweat and rage
Can not keep this mongrel caged
Head is pounding, heart in race
Eyes are red blood rushes my face
I don't care who I hurt just let it fly
what causes this hate inside?