The author Michael Folz explains that Wülfing's art was a "realistic reflection of the world she lives in: she has seen the angels and elfin creatures of her paintings throughout her life.
During World War II, the industrial area around Wuppertal became a bombing target, and Wülfing's house was destroyed, along with many of her paintings.
Her family became separated during the war, when she received a false report of her husband's death on the Russian front and fled to France with her only child; they were later reunited on Christmas 1945.
Under the Nazi regime her books were often burned and she was told repeatedly to paint by the rules at the time, which were large heroic scenes with the leader of States.
[2] Wülfing considered the Hindu mystic Master Jiddu Krishnamurti her spiritual mentor and guide, and believed his influence helped her through difficult times.
"[2] Characteristic Wülfing paintings feature slender, fair-haired, fey young women and men, with large eyes and sad or thoughtful faces, wearing elaborately patterned gowns or robes, and sometimes veils, snoods, wreaths, or jeweled crowns.
These maidens are placed in outdoor settings of twilight woods and moonlit meadows, or in castle-like interiors with vaguely Gothic detail (stone arches, stained glass windows, carved throne-like chairs).
Brambles and thorns, moths and butterflies, feathers, leaves, and delicately rendered flowers add organic richness, texture and complexity to the images.
[6] Wülfing's work, named Der Kristall (The Crystal), inspired the artwork for the LP Every Good Boy Deserves Favour (1971) by the British band The Moody Blues.
[7] Singer-songwriter Stevie Nicks has credited Wülfing's art with providing the inspiration for many of her songs, as well as the cover of her 1983 album The Wild Heart.
In 1973 Pete Sinfield, former lyricist of progressive rock band King Crimson, used the painting Big Friend on the front cover of his first solo album Still.