Life is sweet ! Focus on the donut!

I read a book today "Life is sweet" by Addison Johnson.

In her foreword read the following words:

"As you wander through your life,friend,
whatever be your goal.
keep your eyes upon the donut,
and not upon the hole." That's th key !

It's all there,donut and hole,misery and bliss.
How we feel depends on which part we pay attention to.

Simple,Right?