I found this artist while looking for new pictures for the Circles - Mandalas - Radial Symmetry series. Hilma af Klint was a swedish artist who was born in 1862 and died in 1944. She is concidered one of the first abstract painters together with Mondrian, Malevich and Kandinsky. I immediately liked the strong colors and her use of forms. They remind me a lot of alchemistic illustrations.
If you want to read more about Hilma af Klint, I recommend this article , from Sally O’Reilly in frieze.
frieze has a whole issue from the end of last year about the connection between art and spirituality, which you can find here. It contains another very interesting article that mentions her work, titled Soul Searching - The complex relationship between science and the spirit – and how to represent it written by Mark Pilkington
From Hilma af Klint's diary