4. (5). That this is the state of affairs appears when, on applying one's intelligence to the contemplation of some of the intelligible Entities, it becomes possible to assert, or rather, to see that it is absolutely incapable of ever having undergone any change; otherwise, it would not always exist; or rather, it would not always exist entirely. Is it thus perpetual? Doubtless; its nature is such that one may recognize that it is always such as it is, and that it could never be different in the future; so that, should one later on again contemplate it, it will be found similar to itself (unchanged). Therefore, if we should never cease from contemplation, if we should ever remain united thereto while admiring its nature, and if in that actualization we should show ourselves indefatigable, we would succeed in raising ourselves to eternity; but, to be as eternal as existence, we must not allow ourselves to be in anyway distracted from contemplating eternity, and eternal nature in the eternal itself. If that which exists thus be eternal, and exists ever, evidently that which never lowers itself to an inferior nature; which possesses life in its fulness, without ever having received, receiving, or being about to receive anything; this nature would be "aidion," or perpetual. Perpetuity is the property constitutive of such a substrate; being of it, and in it.[443] Eternity is the substrate in which this property manifests. Consequently reason dictates that eternity is something venerable, identical with the divinity.[444] We might even assert that the age ("aion," or eternity) is a divinity that manifests within itself, and outside of itself in its immutable and identical existence, in the permanence of its life. Besides, there is nothing to surprise any one if in spite of that we assert a manifoldness in the divinity. Every intelligible entity is manifoldness because infinite in power, infinite in the sense that it lacks nothing; it exercises this privilege peculiarly because it is not subject to losing anything. ETERNITY IS INFINITE UNIVERSAL LIFE THAT CANNOT LOSE ANYTHING. Eternity, therefore, may be defined as the life that is at present infinite because it is universal and loses nothing, as it has no past nor future; otherwise it would no longer be whole. To say that it is universal and loses nothing explains the expression: "the life that is at present infinite." ETERNITY IS SEMPITERNAL EXISTENCE.