The main key to getting your heart in shape, so you can be fruitful is MEDITATING God's Word (Prov 4:20-23). This is the message of the Parable of the Sower (Mark 4:9), Psalm 1, Josh 1:8 & 3John 2. Meditation is like digestion. Its 4 parts are to memorise, personalise, visualise and verbalise the Word.