import, and is of universal validity, a kind of speech which is present to spiritual life on its own account, however much it may not be expressed through sound. The products, therefore, of this type of architecture are necessarily stimulating to thought of themselves, and arouse universal concepts, albeit they fail to be the mere envelope and environment of significances which otherwise possess independent form. For this reason, however, the form which permits a content of this kind to appear through it cannot perforce merely pass as symbolic sign, as, for example, in the case when we raise a cross to a deceased person, or erect stones in memory of battles. For signs of this character are doubtless qualified to stimulate ideas, but a cross, or a pile of stones, do not suggest, in virtue of their own nature, the idea which it is our object to awake, but are just as able to remind us of much else entirely different. This distinction constitutes the general notion of the stage now discussed[35]. With regard to this it may be affirmed that entire nations have known how to express their profoundest requirements in no other way than by the arts of building, or at least pre-eminently in an architectonic way. This has been, however, to an essential degree only in the East, as will appear from what we have already seen when we were called on to discuss the symbolic type of art. To an exceptional degree we may say that the constructions of the more ancient art of Babylonia, India, and Egypt--which we have now before us to some extent only in ruins, ruins which have been able to defy all ages and their revolutions, and which excite our wonder and astonishment as much on account of what is wholly fantastic in their forms as in virtue of their extraordinary proportions and mass--either completely bear this character, or in great measure are derived from it. They are works whose construction enlists at certain periods of history the entire activity and life of nations.