The song Sura 15: El-Hijr in the Holy Qur'an talks about the signs of the Book and the manifest Koran, and how the unbelievers will wish they had surrendered. It also discusses the creation of man and jinn, the story of Abraham and his guests, the destruction of the dwellers in the Thicket, and the punishment of the dwellers in El-Hijr who turned away from the signs of God. The song emphasizes the power and knowledge of God, and His ability to create and destroy. It also mentions the importance of serving and praising the Lord until the Certain, or Judgment Day, comes. Overall, the song is a reminder of the consequences of turning away from God's signs and the importance of serving and praising Him. It also serves as a warning to the mockers and those who set up other gods besides Allah.