The seed is the Kingdom message that is preached to honesthearted ones. As in a normal routine of life, the sower “sleeps at night and rises up by day. ”
أَمَّا ٱلْبِذَارُ فَهُوَ رِسَالَةُ ٱلْمَلَكُوتِ ٱلَّتِي نَكْرِزُ بِهَا لِذَوِي ٱلْقُلُوبِ ٱلطَّيِّبَةِ .‏