So when the Yaga gives Vasalisa a lighted skull, she is giving her an old-woman icon, an “ancestral knower,” to carry with her for life. She is initiating her into a matrilineal legacy of knowing, one which, in the caves and canyons of the psyche, remains whole and thriving.

Vasalisa has the fiery skull held before her as she walks through the forest, and her doll indicates the way back. “Go this way, now this way.” Vasalisa, who used to be a blueberry-eyed sweet- muffin, is now a woman walking with her power proceeding her.
...

So, here at the end of the re-setting of initiation into the femi-psyche, we have a young woman with formidable experiences who has learned to follow her knowing. She has endured through all the tasks to a full initiation. The crown is hers. Perhaps recognizing intuition is the easier of the tasks, but holding it in consciousness nd letting live what can live, and letting die what must die, is by far the more strenuous, yet so satisfying aim.

To let things die is the theme at the end of the tale. Vasalisa has learned well. Does she collapse into a fit of high-pitched shrieking as the skull burns into the malicious ones? No. What must die, dies.

How does one make such a decision? One knows. La Que Sabe knows. Ask within for her advice. She is the Mother of the Ages. Nothing surprises her. She has seen it all. For most women, to let die is not against their natures, it is only against their training. This can be reversed. We all know in los ovarios when it is time for life, when it is time for death. We might try to fool ourselves for various reasons, but we know.

By the light of the fiery skull, we know.

Clarissa Pincola Estes - Women Who Run With The Wolves - Myths And Storie by the Wild Woman Archetype