Colossians 2:2-3 (NIV)
My purpose is that they may be encouraged in heart and united in love, so that they may have the full riches of complete understanding, in order that they may know the mystery of God, namely, Christ, in whom are hidden all the treasures of wisdom and knowledge.
I must say that I don't have complete understanding. But, the more I do understand from God's word, the more I appreciate the riches therein. True understanding comes from putting into practice the things in this book. Jesus summed up the things in this book: Love God. Love your neighbor. Love is what encourages us. Love is what unites us. The bible says that encouragement and unity are the precursor to having that complete understanding.
We accumulate a lot of stuff in our life but I heard my pastor say, "You never see a hearse with a UHaul trailer on the back." We won't be taking any stuff to heaven with us. The bible says real treasure is in wisdom and knowledge. Where do we find that treasure? Hidden in Christ. The instructions are on the treasure map, the bible, at this spot:
John 14:21-22 (NIV)
Whoever has my commands and obeys them, he is the one who loves me. He who loves me will be loved by my Father, and I too will love him and show myself to him.