From a letter:

"In a dream 3 or 4 nights ago, I was in a dark house that was unfamiliar to me. I went to this house twice in two different dreams that I had at close intervals. I met a guy in there. We talked about a few things which I can't remember now. However, I do remember telling him I wanted to OBE and he told me, "Isn't that what you're doing now?"