The term check is from the late 15c., in chess, "to attack the king; to put (the opponent's king) in check;" earlier (late 14c.) in a figurative sense, "to stop, arrest; block, barricade;" from check (n.1) or Old French eschequier, from the noun in French.
What part of your business will you block? What item is important to your business? There are many important parts of business. People? Revenue? Customers? Expenses? Capital? Assets? The list is endless. Always check on your business so you can play the long game.
Approaching darkness, encroaching block of shadows, running for your life