Scientists have identified seven basic characteristics of living things: movement, respiration, sensitivity, growth, reproduction, excretion and nutrition. Of the seven, the process of growth is uniquely different in that it takes place gradually and continuously throughout the life span of the organism. While growth can be observed and measured over time, the actual process of growth at the cellular level is not generally visible to the human eye. In the Gospel today, Jesus uses the parables of the mystery of growth to illustrate the nature of the Kingdom of God. Just as the farmer cannot understand or explain the process of growth that takes place between the time of sowing the seed and the time of harvesting, so also it is difficult for us to fully understand the nature of the Kingdom of God and how it grows throughout our lives and among us.