The mustard seed is sown

In today's Gospel, Jesus spoke to the crowds saying: "This is how is it with the Kingdom of God; it is as if a man were to scatter seed on the land and would sleep and rise night and day and the seed would sprout and grow, he knows not how. Of its own accord the land yields fruit..."
I remember a holy superior telling the parents of the Primary school at Clifton when I was in charge of the Primaries that we do not see the growth from day to day; we sow the seed and trust God that the seed will sprout and grow. I feel that my vocation has been to sow seeds wherever I am and trust God that he will bring them to harvest.
Jesus also asks in this same Gospel for today: "To what shall we compare the Kingdom of God, or what parable can we use for it? It is like a mustard seed that, when it is sown in the ground, is the smallest of all the seeds on the earth. But once it is sown, it springs up and becomes the largest of plants and puts forth large branches, so that the birds of the sky can dwell in its shade."
I love this parable. I once saw a Church in Chile that had a wide ledge over the front entrance. Dirt accumulated on that ledge and a mustard seed must have been blown onto it and took root. A tree actually began to grown over the entrance, a living symbol of what Jesus said the Kingdom of God is like and what the Church should be: a shelter for all those who come to seek shade, solace, and eternal life.