Most religions believe in a God or superior being that created this world and is watching down on us. Kanye questions whether or not possibly has faith in humanity, and at the same time questions his existence. How can he believe if he’s not there?
Similarly, can God believe that we’re trying to “get our lives together” when so many do the opposite?

Post traumatic stress disorder is something you get after a horrible event, such as going to war or seeing your best friend get murdered. Kanye’s hometown of Chicago has a lot of murders going on, like a war on the streets. Kanye is still feeling the pain even after leaving Chicago.

Also may refer to his raps in Murder for Excellence:

41 souls murdered in fifty hours

O’s are smoke rings and are a pretty cool smoke trick.

He’s baking Oz’s, or ounces of weed. An ounce is equivalent to 28 grams.

Kembe definitely isn’t quitting and will be hitting his weed man up again, that’s for sure

If you quit smoking weed then you’re a quitter and if I recall correctly, quitters never win or something…

Next time you’re thinking about quitting, don’t do it. Remember all of the crazy adventures you’ve had with your homies while you’ve been high and think about how much different life has been. Instead of being sober be…

A bowl is a glass piped used to smoke weed

And a J is a joint

Fun fact: Mona Lisa smoked weed on the daily.

Pearling a blunt means to roll it perfectly. It takes a while to be able to roll perfect beezies and Kembe can, there making him a master at the art that is known as blunt rolling.

This song samples California Dreamin' by The Mamas and The Papas
http://www.youtube.com/watch?v=dN3GbF9Bx6E