Hilma Af Klin

As a teenager she attended séances, and her desire to make contact with the world “beyond” grew after her sister died in 1880. A decade into her artistic career, she worked with four other female artists who referred to themselves collectively as The Five (De Fem), in making contact with higher powers. They engaged in automatic drawing and writing, a task undertaken by af Klint from 1903 as she developed powers as a medium.
http://www.independent.co.uk/arts-entertainment/art/features/rediscovering-hilma-af-klin-the-original-abstract-painter-a6885826.html