Paul revealed the "secret" in his letter to the Philippians (4:12-13). When living through times of having less and times of having more, the answer to being filled is the same. The answer is strength, love, and salvation from God through His Son, Jesus Christ. If we have Jesus in our lives and on our side, then it doesn't matter what our means are or what situation we are facing, we have all we need to be filled and content!
If you have Jesus, then you hold the secret to surviving and doing all things! Thank God for sharing His Son to save us and His continual love for us!
Thank You for the strength that You give me so that I can face all things. Thank You for sustaining me in lean times and always providing for me. Help me to remember to share Your strength and love with those around me so that they, too, can be sustained and made prosperous in You and for You. In Jesus' name I pray, amen.