I hate to break it to you, but your baby is essentially the author of Sad Cat Diary (YouTube it and thank me later). I can only assume there's a great deal of inner infant lamentation about the incompetence of the "authorities" (read: parents). Since a baby can only communicate through crying, you'll be hearing a lot of it. There's quite a bit going on in that developing brain, too, so allow me to interpret the thoughts your baby has when they're crying. Look, I'm no mind reader or anything, and this isn't an exact science, but I'm confident in my abilities to discern the thoughts your little one is experiencing as they exercise their very healthy set of lungs.
As most moms do, I learned to interpret my baby's cries. I went from clueless to "I think she's hungry" to "clearly she's upset because you put her mittens on, you monster" in a matter of weeks. Now that I have a toddler, I don't even need visual confirmation. When my daughter's getting ready to go to sleep, she has a fussy, whiny cry that needs no intervention. If she's scared, it's sup-supping that can be soothed with cuddles. Pain has its own distinctive sound, and that's when I come running (like when she fell out of her crib).
So if you've ever wondered what's going on in that recesses of your little one's mind, look no further. Welcome to deep thoughts with your crying baby: