The Unchanging Whole

It would appear that one cannot both be content with one's lot in life and desire change at the same moment in time.

One is either content with one's lot, or one desires change, that's all there is to it.

Now the paradox. Not all change is for the better, and it is illogical for a person to want change for the worse.  

And contentment often leads to stagnation.

So what's a poor soul to do?