Berryman - Life influences Art?

I though that both of the Dreams Songs that we read (#29 and #45) had the feel a person struggling with alchohol or drug addiction. #29 to me, felt like a person trying to remember the events from the night before after a drinking or drug binge and decided if what he remembers really happened. The last line of poem feels like he is realized that no one is missing and he hasn't commited the acts he remembers.