This set is inspired by mid-Russian summer, especially by white birches, as you can see.
Each of them represents an ancient Slavic world. The first one is Nav, which assotiates with immaterial, out-of-life being. Kind of mystical stuff, you know...
The second birch is Yav, which is material world.
The last one is Prav world, which rules the other two and contains the concepts of right things and doing things right.
They are quite life-like, aren't they?
