Philip K. Dick's Divine Interference, by Erik Davis

The past is a fiction invented to explain the present.
The future is a fiction invented to explain the past.

What if you studied something, and it was so fascinating, so captivating, that you lost yourself in it.. that you forgot yourself, and thought you *were* it... what if?

Say you were in a submersible, deep beneath the see, looking out of the incredibly thick, tiny porthole, at the strange creatures that live so far below... what if you got so caught up in the spectacle, you forgot the porthole, you forgot your craft... you were there, under the sea, a part of it.

What if you could step back from the porthole?

What, if *you* could step back from the porthole?

I really like this.