To turn now to the nature of the attribute. His views on this most interesting question are very important, because it is here that his doctrine fundamentally differs from Hindu Idealism. He defines attribute as an agency which gives us a knowledge of the state of things.[155:1] Elsewhere he says that this distinction of attribute from the underlying reality is tenable only in the sphere of the manifested, because here every attribute is regarded as the other of the reality in which it is supposed to inhere. This otherness is due to the existence of combination and disintegration in the sphere of the manifested. But the distinction is untenable in the domain of the unmanifested, because there is no combination or disintegration there. It should be observed how widely he differs from the advocates of the Doctrine of "Māyā". He believes that the material world has real existence; it is the outward husk of the real being, no doubt, but this outward husk is not the less real. The cause of the phenomenal world, according to him, is not a real entity hidden behind the sum of attributes, but it is a conception furnished by the mind so that there may be no difficulty in understanding the material world. Berkeley and Fichte will so far agree with our author, but his view leads him to the most characteristically Hegelian doctrine--identity of thought and being. In the 37{th} chapter of the 2{nd} volume of Insān al-Kāmil, he clearly says that idea is the stuff of which this universe is made; thought, idea, notion is the material of the structure of nature. While laying stress on this doctrine he says, "Dost thou not look to thine own belief? Where is the reality in which the so-called Divine attributes inhere? It is but the idea."[157:1] Hence nature is nothing but a crystallised idea. He gives his hearty assent to the results of Kant's _Critique of Pure Reason_; but, unlike him, he makes this very idea the essence of the Universe. Kant's _Ding an sich_ to him is a pure nonentity; there is nothing behind the collection of attributes. The attributes are the real things, the material world is but the objectification of the Absolute Being; it is the other self of the Absolute--another which owes its existence to the principle of difference in the nature of the Absolute itself. Nature is the idea of God, a something necessary for His knowledge of Himself. While Hegel calls his doctrine the identity of thought and being, Al-Jīlī calls it the identity of attribute and reality. It should be noted that the author's phrase, "world of attributes", which he uses for the material world is slightly misleading. What he really holds is that the distinction of attribute and reality is merely phenomenal, and does not at all exist in the nature of things. It is useful, because it facilitates our understanding of the world around us, but it is not at all real. It will be understood that Al-Jīlī recognises the truth of