I think the songs I was writing after Aeroplane were full of a lot of undealt-with pain that was just a little too big. . . the issues seemed too large for me to confront intuitively through songwriting. I kept pushing it and pushing it. There are so many issues about being human and why people inflict pain on each other. There were seeds of all these things I hadn't dealt with. With just the personal issues, I felt I was in over my head, but then to write about it. . . To write you have to have at least a little bit of confidence you know what you're talking about.
If you only care enough for a result, you will almost certainly attain it. Only you must, then, really wish these things, and wish them exclusively, and not wish at the same time a hundred other incompatible things just as strongly.