Spiritual Humor

Yesterday I started to read St. John of the Cross' The Dark Night of the Soul. Looking into the details of each of the sins St. John discusses, I found that spiritual gluttony was clearly my sin. So many of the details were clearly familiar; experiences and thoughts/feelings that I have had so often. The humor is, not long after reading about this condition, I searched google for "prayers against spiritual gluttony". If such an event is not the most epitomic expression of irony, what is?