I have a theory that every time you make an important choice, the part of you left behind continues the other life you could have had. Some people's emanations are very strong, some people create themselves afresh outside of their own body. This is not fancy. If a potter has an idea, she makes it into a pot, and it exists beyond her, in its own separate life. She uses a physical substance to display her thoughts. If I use a metaphysical substance to display my thoughts, I might be anywhere at one time, influencing a number of different things, just as the potter and her pottery exert influence in different places. There's a chance that I'm not here at all, that all the parts of me, running along all the choices I did and didn't make, for a moment brush against each other. That I am still an evangelist in the North, as well as the person who ran away. Perhaps for a while these two selves have become confused. I have not gone forward or back in time, but across in time, to something I might have been, playing itself out.
~Oranges Are Not the Only Fruit by Jeanette Winterson.