"I hate to sound glib here, but ... we were due for a decline. We just were," the "Mad Money" host said. "Markets do not go up in a straight line."
Cramer noted that, on average, 5-percent pullbacks occur at least three times a year. Monday's weakness led the market to close down 8 percent from its high on Jan. 26.
"Despite the large, scary red numbers you see on your screen, the truth is that these things happen. You've got to be ready for them ... at all times," Cramer said.
First, Cramer analyzed the causes of the sell-off. Bullish exuberance, rising interest rates, declines in key stock sectors and weak-handed shareholders all contributed to the losses, but Europe really "got the ball rolling," he said.