of bodies, and to the external substances1 of spi- rits, and between all beings there arises an inter- position dependent on the degree of excellence which it has with respect to God. All the reality of accidental beings lies in the external existence ; the reality of individuals is dependent upon fixed times, and every one emerges into existence at his time. 2 The Sufis maintain that ail attributes of perfection are necessarily inherent in the supreme holy essence; that is, are fixed by the purity of his essence. What in the accidental substance is fixed by properties, for instance, thy substance, is not sufficient for the revelation of thyself ; as long as the attribute of God's essence, which is the principle of that revela- tion, has not taken firm hold of thee, this revelation 1