The Secret of Being Content

The other day, I came across these words from Paul:

I have learned to be content whatever the circumstances. I know what it is to be in need and I know what it is to have plenty. I have learned the secret of being content in any and every situation, whether well fed or hungry, whether living in plenty or in want.  -Philippians 4:11-12

Wow.

Talk about challenging.

Because seriously, content whatever the circumstances?

You mean as writers, we're to practice contentment whether we have an agent or...