This is from the Parable of the Sower, where the farmer sows the Word…the Logos…the Word of God, onto a hard-packed path. The seed just sits on top of the surface, unable to germinate and grow because of the hardpan – the unbroken subsoil beneath. To have a hardened heart towards the Gospel is to have an indifference towards the things of God…or to have an unfeeling conscience. So how can we pray for that person? We can ask the Lord to plow up that hard soil of rebellion in their life… that the Word of God may germinate and flourish there.