The fact that Jesus chose to explain the Kingdom of God in parables and stories demonstrates its inherent mystery. The Kingdom of God is hard to describe, hard to pin down, hard to quantify. The content of these stories—a mustard seed that starts out tiny and grows to be a huge tree, a seed that springs up and grows while we are not looking, yeast that infiltrates a whole huge batch of dough and causes it to rise—also tells us some of the qualities of the Kingdom of God. The Kingdom is hidden, surprising, growing, multiplying. It’s present even when we do not see it, but yet we see its results.