Re: "I am the Universe."
In which case, look at Masahisa Goi's introduction to Hideo Takahashi's edition of Morihei Ueshiba's discourses, published as Takemusu Aiki. Actually, Goi quotes the Founder in several places and he solves the question I posed in the earlier post. The phrase is "ware wa sunawachi utchuu", or "utchii sonomono de aru watashi".
I would think that Goi would be an important stop in any research on the Founder's mysticism, as would be Reikai Monogotari. Do you know that there is an electronic edition of Deguchi's book? Which makes it much easier to use.