Memories and imaginations wouldn't exist if it wasn't for a foundational image of the body.Whether it is an unconscious or a conscious image of one's body, both are remembered and imagined, and the basis for how we negotiate the world. What we have learned in our prior memory would reflect on how we response to an immediate condition. Memories, imagination, as well as impulse to an action is driven from two kinds of body images, the interior which provides information on out internal states, and from our senses which are directed to the world around us. Our senses are which provide us on an ongoing stream of information. The body image is not the same thing as the event that triggers it, but just like the memory, there are real neurophysiological events.
The interrelation between memory, imagination, and the process can be seen in relationship to "as if" body states psychophysical states based on memory, in that body function.