If you can cultivate wholesome mental states prior to sleep and allow them to continue right into sleep without getting distracted, then sleep itself becomes wholesome.
That Scarface movie is just ruthless! His state of mind was like, "Yo, we're gonna get it - we're gonna get this money, we're gonna get this, get that."
Gold is not necessary. I have no interest in gold. We'll build a solid state, without an ounce of gold behind it. Anyone who sells above the set prices, let him be marched off to a concentration. That's the bastion of money.