So not Cthulhu or anything fun.
Soviet means light or world in different slavic tongues.
Peron means lightning
The slavic gods were very primitive versions of indo European gods. The hight in philosophy among I do European religions is Brahmanuc Hinduism.
Perun had his analogies in Thir / Zeus pitar/ Jupiter/ indra who were all chief gods. So the primitive indo European peoples really revered lightning or rather feared it.