[1. Traditional saying of Muhammad.] and from whence hast thou come? Whither art thou going, and for what purpose hast thou come to tarry here awhile, and in what does thy real happiness and misery consist? Some of thy attributes are those of animals, some of devils, and some of angels, and thou hast to find out which of these attributes are accidental and which essential. Till thou knowest this, thou canst not find out where thy real happiness lies. The occupation of animals is eating, sleeping, and fighting; therefore, if thou art an animal, busy thyself in these things. Devils are busy in stirring up mischief, and in guile and deceit; if thou belongest to them, do their work. Angels contemplate the beauty of God, and are entirely free from animal qualities; if thou art of angelic nature, then strive towards thine origin, that thou mayest know and contemplate the Most High, and be delivered from the thraldom of lust and anger. Thou shouldest also discover why thou hast been created with these two animal instincts: whether that they should subdue and lead thee captive, or whether that thou shouldest subdue them, and, in thy upward progress, make of one thy steed and of the other thy weapon.
The first step to self-knowledge is to know that thou art composed of an outward shape, called the body, and an inward entity called the heart, or soul. By "heart" I do not mean the piece of flesh situated in the left of our bodies, but that which uses all the other faculties as its instruments and servants. In truth it does not belong to the visible world, but to the invisible, and has come into this world as a traveller visits a foreign country for the sake of merchandise, and will presently return to its native land. It is the knowledge of this entity and its attributes which is the key to the knowledge of God.