[3] The other members the group De Fem (The Five) were Hilma af Klint, Anna Cassel, Sigrid Hedman and Mathilda Nilsson (Cornelia Cederberg's sister).
It began as an ordinary spiritualist group that received messages through a psychograph (an instrument for recording spirit writings) or a trance medium.
Through their spiritual guidance, the group was inspired to draw automatically in pencil, a technique that was not unusual at that time.
When the hand moved automatically, the conscious will did not direct the pattern that developed on the paper, and, in theory, the women thus became artistic tools for their spirit leaders.
In a series of sketchbooks, religious scenes, and symbols were depicted in drawings made by the group collectively.