These pieces of art are pure decalcomania. Decalcomania is the pressing of paint between two smooth surfaces. When those surfaces are separated the tension in the paint creates bifurcating (branching) fractal patterns.
Purity is down to earth and unique. Purity is the absence of things that might taint our thoughts or feelings.
Be pure of mind and enjoy these pieces with innocence in your mind and heart. Let yourself explore.