Sometimes a person who is already successful faces a major problem that costs him his success. Successful businesses sometimes go bankrupt, successful people may go out of business because of unexpected reasons and they may return to the point they started from because of a major change that suddenly happened.
All of these people recover again and return back to the point they reached earlier in a short period of time. How do business men rebuild their wealth few years after losing it and how do these people stand up again after catastrophic events? Its because they are resilient, they stand up whenever they fall, they believe that they are in control of their fate and that they are not helpless.
If you want to become successful in business then you should learn how to become resilient in order to bear life shocks without collapsing.