Aside from identifying who Tweedle Dee and Tweedle Dum are, there's a LOT more to weed out in a song like this one, and what it means. That's just the tip of the iceberg! Looking for more info I found this paper, which seems pretty good: http://nicolamenicacci.com/bdcc/DylanTweedleDee.pdf
give it a read, it's worth it
Aside from identifying who Tweedle Dee and Tweedle Dum are, there's a LOT more to weed out in a song like this one, and what it means. That's just the tip of the iceberg! Looking for more info I found this paper, which seems pretty good: http://nicolamenicacci.com/bdcc/DylanTweedleDee.pdf give it a read, it's worth it