These composition studies explore the twin concept of depersonalization and derealization, a syndrome resulting from the anxiety of trauma where one is detached from their own body, and feel they move through experience in a dream-like state.
(These drawings are light and not easy to photograph, thanks for clicking on the image to get a better look.)
Eve Ensler (creator of the Vagina Monologues) has an excellent podcast on the topic, which I found on Maria Popova's Brainpickings.
Sketch for... Along for the ride