Adsense is Nonsense

I don't have any idea how Adsense decides what to pay you for what. The other day I made seven cents without having any clicks that day. One day I made 32 cents for 2 clicks. I just don't get it. As long as I'm making something, I don't care to question it. Although I suppose it would be helpful to know how it works. Maybe I could figure out a better way to earn more. Eventually I'll take the time to decipher Adsense's mysterious ways...