Cash is Liquid. With infinite options to choose from, you become opportunistic with Cash. Cash gives you the leverage, you decide the terms and play power-negotiations game.

Cash is equally important for institutions.

Without the Cash, all leverage is lost. You run out of options.
there can be times when you will have spent all your money over petty things like parties, luxury travel, etc. Then the struggle period arrives and you cautiously spend your cash.

There are multiple ways to be Cash Rich, following are a few: