δ. Bruno continues: From this super-essential (_super-essentiale_)—an expression which is also met with in Proclus (_supra_, Vol. II. p. 441)—advance is made to the essences, from the essences to that which is, from that which is to their traces, images and shadows, and that in a double direction: both towards matter, in order to be produced within her (these shadows are then present in natural fashion), and also towards sensation and reason, in order to be known by means of these. Things withdraw themselves from the First Light towards the darkness. But since all things in the universe are in close connection, the lower with the middle, and those with the upper, the compound with the simple, the simple with those which are more simple, the material with the spiritual, in order that there may be one universe, one order and government of the same, one principle and aim, one first and last; so, following the sound of the lyre of the universal Apollo (an expression which we saw used by Heraclitus, Vol. I. pp. 284, 285), the lower can be led back step by step to the higher, as fire was condensed and transformed into air, air into water, water into earth. Thus One Being is in all. That process is the same as this return, and they form a circle. Nature within her limits can produce all from all, and so the understanding can also know all from all.[86] ε. The unity of opposites is explained more in detail as follows: The diversity of shadows is no real opposition. In the same conception the opposites are known, the beautiful and the ugly, the appropriate and the inappropriate, the perfect and the imperfect, the good and the evil. Imperfection, evil, ugliness, do not rest upon special ideas of their own; they become known in another conception, not in one peculiar to themselves, which is nothing. For this that is peculiarly theirs is the non-existent in the existent, the defect in the effect. The first understanding is the original light; it streams its light out of the innermost to the outermost, and draws it again from the outermost to itself. Every Being can, according to its capacity, appropriate somewhat of this light.[87]