Arthur Tress asked children to describe their nightmares. He then immortalized them into photographs.

“Daymares is a series of photographs that attempts to interpret the dreams and fantasies of young children through the medium of documentary photo-
graphy. […] The purpose of these dream photographs is to show how the child’s creative imagination is constantly transforming his existence into magical symbols for unexpressed states of feeling or being. In fact, we are all always interchanging
or translating our daily perceptions of reality into the enchanted sphere of the
dream world.” More from the artist’s statement here.
(via HuffPost Arts & Culture)