The document discusses the importance of diligence and guarding one's heart. It notes that diligence is the opposite of dilly-dallying and that Christians must make an effort to develop diligence in their spiritual lives. It also emphasizes guarding one's heart by controlling what information and influences are allowed to enter through the eyes, ears, mind and mouth to prevent sinful things from flowing out. The document encourages pursuing righteousness over materialism and obeying God's commands in order to be saved and have right to eternal life.