In all seriousness though, the “de-dum, de-dum, de-dum, de-dum” is supposed to act like the background pulse while the more dramatic emphases and variations cause the musical flow that makes writers like Milton and Shakespeare masters of iambic pentameter. The best way to improve your appreciation is to read them aloud or to find a high quality audiobook to listen to while you’re reading. Older texts can take a little more effort to get into but are really rewarding as well, so best of luck in your reading and enjoy!