Based on Christianity, the book conveys two kinds of inner voices. One voice, from devil, is constantly tempting you to follow your desires. Another voice, from God, is telling you not to do what is bad. When everything seems to be over and your life is ruined after following the devil’s voice, the voice from God tells you that He can fix everything. Devil’s voice is portrayed with red lines. On the contrary, God’s voice shown through small holes (I cut out the graph paper squares) since it is hard to listen. However, when light shines through the holes the words become clearly visible.