Simargl is the most mysterious deity of the Slavs.
This cult has developed among the Slavs under the influence of Scythian culture around 3 thousand years ago. Probably Simargl meant "seed". This ancient Slavs deity was not the most popular, but probably remains the most mysterious one to the present day. Simargl is a sacred winged dog guarding seeds and crops, worshipped as ancient Russian Bereginyas. Back in the Bronze Age the Slavic tribes had the image of dogs leaping and tumbling around young shoots. Apparently, these dogs were guarding the crops from cattle: chamois, roe deer, and wild goats.
Protecting the land, Simargl does not let the evil into the world. Every night he stands on guard with a flaming sword, and only one day a year Simargl leaves his post, responding the call of a swimming girl who calls him for love games during the autumnal equinox. And after 9 months during the summer solstice Simargl and the swimming girl had their newborns: Kostroma and Kupalo.