I'm reading an interesting book by Kay Larson, a biography of John Cage, Where the Heart Beats: Zen Buddhism, and the Inner Life of Artists. (Penguin 2012) She includes an interesting quote from John Cage: "What can be analyzed in my work, or criticized, are the questions I ask."
If one were to apply this to one's own work, it brings up interesting things. One of the observations that others have had in my writing are shifts in verb tense: past and present. I do have a question about time. Although some people declare, the past is the past - it is behind us - isn't the present made up of both here/now and memory?