If you know what you're looking for, the illustrations might give you a tip about what is coming in that section. But it takes a lot of study and familiarity with the work for anyone to really "decode" it, and there are also images that are just thematically important, and not necessarily pointing to specific poems, so mainly it was just a fun puzzle for ourselves.
One thing that I believe is that every time I write something, I am taking the time to celebrate. Even if I am writing a sad story or an angry poem, I am still giving those stories my time and attention.