I love these teachings...In Mark 4 Jesus is teaching the parable of the sower. In this example the seed is Gods supernatural word that must be planted in our hearts. At the end Jesus tells them, if you can't understand this teaching you'll never have a full revelation of the remainder of the Bibles teachings. You must keep your heart soft and keep planting God's word in soil that will produce a 30 60 100 fold return. Give us this day, our daily bread...Jesus is talking about filling up on Gods word, not physical bread.