This is a historical drama with great spiritual elements.
There are several spiritual terms in the movie, such as belief in the soul and reincarnation – “we are souls who lived before”; the representation of a sacred Goddess who keeps things in balance: good and evil, prey and predator, and many others.
However, for me, the most fascinating spiritual concept in the story is that of destiny.
The fate of the land of Avalon, its rulers and the Lady of the Lake – who, being the highest priestess, follows her duties to the best of her abilities – are a red line in the story.
Vivianne, the priestess, is not only well-trained for the position of taking care of her land, but also has natural supernatural abilities. One of them is the ability to see the future. Her power is even greater – she can see different scenarios of the “pre-scheduled” future based on the choices of the people ruling that land.
By Vivianne’s vision, the future of the land is “shaped” for the best-case scenario for the Kingdom, as she advises the rulers of Avalon about the choices they must make.
However, her mission is misunderstood. Morgaine, who in fact is supposed to be a successor to Vivianne, is not capable of realizing the beauty of correct choices; she feels that personal happiness is more important than the destiny of her own land.
Morgaine rises up against the “cruelty” of Vivianne and her “humans’ manipulation” at the expense of Avalon’s prosperous future.
The tragic end of the movie shows us how Morgaine was wrong. Her disobedience of Vivianne led to the death of the priestess, a war between her son and beloved brother and the death of both of them, the absence of the kingdom’s ruler, no heir to the throne, her own loneliness and cruel fate for her own land.