26He also said, “The kingdom of God is as if someone would scatter seed on the ground, 27and would sleep and rise night and day, and the seed would sprout and grow, he does not know how. 28The earth produces of itself, first the stalk, then the head, then the full grain in the head. 29But when the grain is ripe, at once he goes in with his sickle, because the harvest has come.” 30He also said, “With what can we compare the kingdom of God, or what parable will we use for it? 31It is like a mustard seed, which, when sown upon the ground, is the smallest of all the seeds on earth; 32yet when it is sown it grows up and becomes the greatest of all shrubs, and puts forth large branches, so that the birds of the air can make nests in its shade.” 33With many such parables he spoke the word to them, as they were able to hear it; 34he did not speak to them except in parables, but he explained everything in private to his disciples. (Mark 4:26-34, NRSV)
How do things grow? Well, we know that when you plant a seed in the ground it is fed by the nutrients in the soil and the sun and water and it sprouts and grows. But how does it really work?
It just does. And sometimes the smallest seeds become the largest plants. it is how God works.
So believe and have faith that God will complete the good work begun in you. And know you are here for a reason.