During its 96 minute runtime, Io is asking a number of exploratory questions: the deepest of them being, "What makes us human?" and the film explores this and other questions via mythology.
In fact, this movie very blatantly tells you that it is mythology and that it is also creating the mythology of the fictional world within the film.
Alright, so let's get into the World Weaver's Journey aspects of Io so we can look at the deeper meaning of the movie and I'll do my best to stitch all my ideas and concepts thus far together - and this will be my last warning about the spoilers...from here on there be dragons!
As I already mentioned, this movie pretty much plays out as a potential tragedy. Sam's true World Weaver's Journey isn't apparent because everything and everyone (even the memories or ghost of her father) is telling her that she needs to leave Earth so she won't be alone.
But once you understand that Sam's World Weaver's Journey absolutely is to stay on Earth, it becomes clear that we are mostly seeing her on her Victim or Chosen One step - she is already well committed to the Journey. Sam could be the Victim - just like everyone else - and be forced away from the planet or succumb and die.
Normally I wouldn't condone a "Chosen One" path for any character, but in this case Sam is actually creating that Chosen One path for herself. Everyone is actually expecting Sam to leave Earth. They all want her to play the Victim card and just give up.
But Sam's chosen path is to stay on Earth even though everyone else is leaving. Her Deal With the Fae, or her Faery Godmother was her own father, but like many mentors he has died and it's up to Sam to continue her work on her own.
I have to assume that her Leaving the Waters and Brilliant City time was while her father was sick and when he died. He was actually telling her to give up the work and leave Earth. Not because he had lost faith, but because he didn't want his only child to be alone.
But Sam is determined to finish her work and figure out a way for humans to continue living on Earth. Sam has a very strong and well-programmed Ego - aha! I knew I'd get that in here somewhere! She hasn't let the outside world program her Ego. Sam is listening to that deep, inner voice - her true voice, that voice of Love - and has programmed her Ego from the inside. Sam knows what her purpose is. She absolutely knows what it is she is supposed to do and she is determined to do it and she is strong enough to stand on her own.
Sam also knows that it is not her job to go out preaching and attempting to convince others to stay on Earth as well - she leaves that to her Father by playing an old radio broadcast of his every night.
Unfortunately - and I think almost all of us can relate to Sam here - it seems like the odds are stacked against her. In true Victim or Chosen One fashion, a massive storm wrecks a large portion of her work and research and it turns out that the last shuttles between Earth and Io are prepping for one final launch and they will never be coming back.
Up to this point, Sam has always had an "out". She had options. She had time to do her work and put off leaving Earth. But now those options are coming to a close.
Ah, but then, Micah, played by Anthony Mackie, shows up and Sam is finally Meeting the Beast...or Meeting God in this case: this stage of the World Weaver's Journey is always about meeting with your other half. Meeting with the one who has the polar Energy you require - and in this case, Sam literally needs an injection of Micah's sperm. The Feminine Love requires the injection of Masculine Labor to create Wholeness - I know I wanted to move away from those terms, but this movie embodies those energies onscreen.
In this case Sam, the Goddess, meets Micah, the God: Micah's name quite literally means "Who is like Yaweh?" or "Who is like God?". Given how convoluted the Hebrew language actually is, we could remove the question mark from the phrase and say that Micah's name means, "One who is like God".
So, mythologically speaking, Micah is Zeus coming down out of the heavens to be the lover of Io or Leda - depending which one you want to refer to Sam as - Io makes more sense in regards to the movie's title and the idea of Sam's offspring being as strong as Hercules, but the movie makes more references to Leda who was also one of Zeus's conquests.
One other option that Sam has always had is Elon. This is her lover or boyfriend who is currently living on the space station and I think Sam believes one of three things will happen between her and Elon: 1 - that Elon will come to Earth to stay with her out of sheer love for her. 2 - that she will go to Io and convince Elon to go back to Earth with her. Or 3 - she will go and be with Elon for a short time and come back to Earth pregnant and continue her work. All of these are Sam's Standing on the Shoreline thoughts.
Again, in typical World Weaver's Journey fashion, Life now rears its head and tears these options away from Sam when Elon informs her that he has volunteered for and been selected for a deep space mission to Alpha Centauri. With all of her options torn away, much of her work destroyed, and facing a life completely alone it's really no wonder that Sam just says, “Okay” when Micah tells her that he's going to force her to go to the last shuttle launch with him.
I can imagine how easy it would have been for Sam to give up entirely at this point; how easy it would have been for her to just give in to the Ideology of humans leaving Earth. It's easy to believe that all of her work was for nothing. But, like I said, Sam has a strong and properly programmed Ego. She may have some moments where she feels like giving up, but that bullheaded determination within her will always find a way to turn things to her advantage.
Which she does while the winds are unfavourable to take Micah's balloon in the right direction and then, as fortune would have it, the launch location is abruptly changed. These changes give Sam the time she needs to decide what she is going to do...and step one is bedding Micah and allowing the "god" to impregnate the "virgin queen".
Again, this is the perfect conjoining of the masculine Labor and feminine Love, but I think it's also Sam's Overcoming the Devourer moment - her desire to stay on Earth holds the most power over her, her despair is slowly devouring her resolve - I think all along Sam believed she could be Mother Eve of a new generation of human beings that could live in Earth's toxic atmosphere.
As viewers we don't know this for certain yet and perhaps it's not fully clear to Sam either. I think this is why she has this compelling need within her to see the mythology display at the museum of history in the city she scavenges for supplies in.
She's never been to the museum because it's further into the "zone" than she's ever gone before.
Do you see the symbolism here?
We have truth and understanding and knowledge within ourselves, but we have to constantly dig it out and there are always places within ourselves that we haven't gone into yet because they are further than we've ever gone before. Once we go to them, we can't go back and we can't unknow what we have learned. Those Death of Innocence moments are always chasing us throughout our Journeys. We don't just have one Death of Innocence, we have many.
I think Sam knows that when she sees the mythology display that it will forever change her - it's her Transformation of the Beast moment, it's her Pregnancy moment - and this turns out to be the truth. It is here where she decides to take the biggest leap of faith of all - it's where she completely skips over Family Life or Hermit Life and she answers the Call From Home and accepts the Challenge for the Throne.
Sam will sit on the Throne of her Self and she will rule or she will die.
Sam removes her breathing apparatus and helmet and the screen goes black. Dead or alive she is determined to stay on Earth.
Micah leaves her the same way he arrived. God ascends back up to the heavens.
We don't see what Sam went through for the next few years, but it's clear that she has become a Joyful Guardian of Earth. She has become The Empathetic Ruler of a Balanced World. She has given herself Permission to be Happy. She can live in the toxic atmosphere. She has survived and she has thrived and she is not alone. Her child, the Christ child, Hercules of old, son of a God and Goddess joins her on the beach where she stands while she encourages Micah and others on Io to come and be true human beings with her on the planet where they were born.
And this is what all the spiritual teachers are trying to tell you: come and live with us in this strange new world! It's actually the same world you've always lived in, but it's deeper and wider and darker and brighter and more confusing and more amazing than the surface existence you've been living all this time.
And I'm going to add, don't just live in the Spirit. Live in the World. Enjoy it! Breathe the Toxic Atmosphere. Thrive in it! There's no point to all the spiritual-seeking and ego-building if it doesn't teach you to live in the real world.
And to live authentically and peacefully in this real world, I know that if you build your Ego strong, are determined in your mission, and are willing to dive deep within yourself that you absolutely will change your Self and become the Mother of God's children who will ultimately change your world.
Thank you very much for listening and/or reading - Goddess Blessings upon you, you have all the weapons and knowledge you need within you.