But in demonstrating these, the Literal must always go first, as that in whose sense the others are included, and without which it would be impossible and irrational to understand the others. Especially is it impossible in the Allegorical, because, in each thing which has a within and a without, it is impossible to come to the within if you do not first come to the without. Wherefore, since in books the Literal meaning is always external, it is impossible to reach the others, especially the Allegorical, without first coming to the Literal. Again, it is impossible, because in each thing, natural and artificial, it is impossible to proceed to the form without having first laid down the matter upon which the form should be. Thus, it is impossible for the form of the gold to come, if the matter, that is, its subject, is not first laid down and prepared; or for the form of the ark to come, if the material, that is, the wood, be not first laid down and prepared. Therefore, since the Literal meaning is always the subject and the matter of the others, especially of the Allegorical, it is impossible to come first to the meaning of the others before coming to it. Again, it is impossible, because in each thing, natural and artificial, it is impossible to proceed unless the foundation be first laid, as in the house, so also in the mind. Therefore, since demonstration must be the building up of Knowledge, and Literal demonstration must be the foundation of the other methods of interpreting, especially of the Allegorical, it is impossible to come first to the others before coming to that. Again, if it were possible that it could be so ordered, it would be irrational, that is, out of order; and, therefore, one would proceed with, much fatigue and with much error. Hence, as the Philosopher says in the first book of the Physics, Nature desires that we proceed in due order in our search for knowledge, that is, by proceeding from that which we know well to that which we know not so well; so I say that Nature desires it, inasmuch as this way to knowledge is innate in us; and therefore, if the other meanings, apart from the Literal, are less understood--which they are, as evidently appears--it would be irrational to demonstrate them if the Literal had not first been demonstrated. I, then, for these reasons will discourse in due order of each Song, firstly upon its Literal meaning, and after that I will discourse of its Allegory, that is, the hidden Truth, and sometimes I will touch incidentally on the other meanings as may be convenient to place and time. CHAPTER II.