How should we face the change ?

The part three of who moved my cheese tells us :

Facing the change, Sniff and Scurry can notice it ahead, and they can prepare for the inevitable thing and know instinctively what to do.they can be quickly off in search of new cheese.

Faceing the change, Hem and Haw have not been paying attention to the change, so they are unprepared for it, and they wouldn't believe in it. At last , they couldn't find new cheese.

Then how should we face the change ? I think we ought to notice the change in time, and we can change by change.