Overall meaning : I swear by the sun and its brightness, by the moon when it follows the sun, by the day when it reveals the sun and its brightness, by the night when it veils it and takes away its brightness, by the sky and the One who has built it, by the earth and the One who has spread it out and by every soul and the One who has created it, given it life and shown it the way of good and evil, obedience and disobedience—I swear by all these that successful indeed are those who cleanse their souls of all unbelief and sins and strengthen them with faith and righteous deeds, and ruined and miserable are those who corrupt their souls and bury them in sin, vice and wickedness.