YES

Go to the mattresses. It's from The Godfather. It means you have to go to war.
The Godfather is the I Ching. The
Godfather is the sum of all wisdom. The
Godfather is the answer to any question.
What should I pack for my summer
vacation? "Leave the gun, take the
cannoli." What day of the week is it?
"Maunday, Tuesday, Thursday, Wednesday."
And the answer to your question is "Go to
the mattresses."
You're at war. "It's not personal, it's
business. It's not personal it's
business." Recite that to yourself every
time you feel you're losing your nerve.
I know you worry about being brave, this
is your chance. Fight. Fight to the
death.