When we study the Bible we use our intellect, while we use our heart and mouth when we meditate. “The mouth of the righteous speaks wisdom, and his tongue talks of justice. The Law of his God is in his heart; none of his steps shall slide” (Psalm 37:30-31). The righteous one has the Word of God in his heart and repeats it regularly and re-calls it to himself. To meditate is to speak to your self. It is to chat about the wisdom of the Word. The Word fills my heart and mind, and I repeatedly utter it to my self.