2 Set your minds on things above, not on earthly things. 3 For you died, and your life is hidden with Christ in God. 4 When Christ, who is your[a] life, appears, then you also will appear with him in glory. (Colossians 3:2-4 CSB)

What is it to be hidden with Christ in God?

It means that we have a new perspective. We should no longer be living life like this is all there is. We live with an internal knowledge that we are not of this earth. Our home is in heaven, part of which is hidden within us through the Spirit.

Christ, who is your life now, is THE matter of how we live life.