152 both is valour; and, as to keep the middle tenor, is very difficult, this has been emblematized by some- thing which is finer than a hair and sharper than the edge of a sword, and by three arches, which indicate the due mixture of three powers, viz. : knowledge, courage, and lust. Under hell is meant elemental nature. We shall pass to the interpretation of the gates of heaven, the number of which is eight; that of the gates of hell, seven. It is established that there are five external senses and five internal; but all of them are not apt to perceive without the assistance of inference and imagination; because it is imagi- nation which perceives the forms, and inference completes the perception of sensible things. The two internal with the five external senses, make seven. If they attend not to the commands of rea- son, each of them goes for imprisonment to that hell which is under the heaven of the moon, and if thev fj listen to these commands, they reach with the ninth rank of intelligence the eight gates of heaven for salvation and emancipation, as well as enter the Paradise which is among the heavens. " As to him who disobeyed, and preferred the worldly life, hell shall " be his abode; and as to him who feared the being of the Lord and '* refused to give up his soul to concupiscence, Paradise shall be his 41 abode."