If it's in anything but God, you're going to feel empty when (not if) it goes away....
Psalm 102: 25-28 (ESV)
Of old You laid the foundation of the earth, and the heavens are the work of Your hands.
They will perish, but You will remain; they will all wear out like a garment.
You will change them like a robe, and they will pass away,
but You are the same, and Your years have no end.
The children of Your servants shall dwell secure;
their offspring shall be established before You.
Did you see it..."they will ALL wear out like a garment" - everything but the Lord.
Make sure your security is in Him before anything else!
This is how we "dwell secure."