As for films or stories about Baba-Yaga, I've almost tried not to miss them since I was a kid. I even learned that the acting prowess of male star Georgiy Millyar became the model for any Baba-Yaga character appearing on the screen after the 1960s.
In this film, Mariya represents spring, while Baba-Yaga and sometimes Kikimora represents autumn or winter. Danila must go into the magic lake to develop intellectually, personally and strengthen his faith. Life has many pitfalls, but in the end, faith, energy and love will overcome them all.