Jesus says in Matthew 13:44, "the kingdom of heaven is like treasure hidden in a field" (NKJV). The greatest treasure we can search for in life is Jesus Himself. Making the decision to follow Him makes us subjects of His heavenly kingdom.
We can find Jesus in the Bible. He is easiest to see in the New Testament. But, He is also in the Old Testament, just a little hidden under the surface, like those yummy sweet potatoes and sunchokes. This is how you can find Him there if you look a little closer.