317. [309] Unless one procures a knowledge of these two kinds of degrees, he cannot have an idea of the interiors and exteriors of man, thus neither of the soul and the body, nor indeed of causes and effects. Nor can he have an idea of the distinction between the heavens, nor of the wisdom of the angels in the heavens; nor can he have any idea of correspondences, of representatives, of influx, of order, thus he cannot have an idea of those things which are of order, both in the natural world and in the spiritual world, thus scarcely any just idea of anything.