Hilma af Klint’s imagery is full of symbols, letters and words. Symbols are like doors into another dimension. For Hilma af Klint, her entire work was about conveying the messages she received, and to shed light on the great existential issues.... The swan represents the ethereal in many mythologies and religions and stands for completion in the alchemical tradition.http://artblart.com/2013/05/22/exhibition-hilma-af-klint-a-pioneer-of-abstraction-at-moderna-museet-stockholm/