The poetry of heroism appeals irresistibly to those who don't go to a war, and even more to those whom the war is making enormously wealthy. It's always so.
The mystic purchases a moment of exhilaration with a lifetime of confusion; and the confusion is infectious and destructive. It is confusing and destructive to try and explain anything in terms of anything else, poetry in terms of psychology.
Poetry is that art which selects and arranges the symbols of thought in such a manner as to excite the imagination the most powerfully and delightfully.