"We were created by God and for God" - meaning our purpose is all about Him - it's not about us/me/you.
Our sole purpose is to live according to His commandments and be in right standing with Him. Purpose has nothing to do with career, family, monetary well-being or even material - our sole purpose to be pure and holy. All these other things will be added.
It's hard to comprehend, but isn't God greater and better than all these things? All we can do is respect Him.