As was briefly touched on before, the main staple food at the time of Jesus was bread. It was considered nourishing, filling, and wholesome. In this parable, bread is symbolised as the future finished product of the Kingdom of God. Expanded, nourishing, and wholesome. However, modern research and philosophy on the subject of God's Kingdom has come to the conclusion that there are two components to this Kingdom; The Present and The Future. This means that, while there is a Kingdom of God already there, it is not yet complete, and will not complete itself on it's own. The Kingdom of God is a reward to us, not a right, and we must help knead the yeast through the dough it we want to make a future and nourishing bread. In other words, the bread is symbolised as what the Kingdom of God could be like if Jesus' followers all work together in building a moral and just society.