The Amplified version gives us some greater detail to ponder
Its value has increased because its purpose has been changed.Tony Evans
It’s the same basic element (sand) but it’s value increases at its purpose improves. Think about how that applies to people and in particular to your own life. And more specifically, from the view of our being a creation of God’s. We are His workmanship but He expects us to maximize our time, talent and treasure for His glory. When we fulfill our greatest purpose, we are most fulfilled.
Pursue your destiny with passion and expediency because when you discover the eternal impact of your actions, you will sense that you have greater value than you realized.Tony Evans
How do we best co-operate with His best purpose so we can manifest our destiny?