Set your mind on things above, not on things on the earth.
For you died, and your life is hidden with Christ in God."
Colossians 3:1-3 (NKJV)
If you left something on a beach, it could eventually be covered by sand. If you left something out in a field or lying in a forest, eventually it could be covered by dirt, leaves, or even branches. Sometimes, to see something we first have to uncover it by removing the things that have accumulated over it and that have covered it up. There may be something valuable lying on the ground, but if it is covered by something else, we will have to uncover that thing before we can see what it really is.
In the book of Colossians, Christians are encouraged to seek things above; we are told to set our minds on heavenly things and not on earthly things. The reason for this is because we have been raised with Christ and our life is hidden with Christ in God. Our true identity, who we were really created to be, is found in Christ, and we have to discover that identity. The problem is that sometimes our true identity in Christ can be hard for us to see, because so many other things have covered up who we really are.
Sometimes, because of past experiences, wrong teaching, or even because of how we were raised, our true identity and who God has created us to be is covered up and hidden. We need to have a regular time of reading and studying God's Word, and we need to allow the Holy Spirit to show us who we really are and help us uncover our true identity and purpose in Christ. By discovering who we really are in Christ, and living in our true identity, we can fulfill the will of God and live the life that God has planned for us.