sentences:  Whereas on the one hand to these and other stars Qazwini refers to the spheres or plants in scientific terms, on the other hand he supports the effects of the Moon, the North Pole and South Pole on man and animal, such as having the power to cure illnesses, with sayings among people.Man's purpose on earth is to achieve perfection and eschew bad habits and acts.The good character outweighs in this life and the next; bad character is a sin that can not be forgiven and through it man descends to the lowest of the low in hell.