In Mark 4, Jesus teaches through parables, concealing the Kingdom of God for some while revealing it to others. He does this because the parable's meaning depends on the listener's heart condition. Birds, stones, and weeds represent obstacles within and around us that can hinder understanding, while Jesus faithfully sows the seed of God's love and kingdom. Parables also point to the indescribable glory of the Kingdom, which surpasses human language. As followers of Jesus, we are called to teach about this Kingdom, sharing its love and truth while recognizing that hearts can be open or closed to its message. Ultimately, God brings the increase, and all the good we experience here is just a glimpse of the true glory to come.