HELP! Wife having spiritual awakening/marriage in peril

[fieldingmellish]

Hi everyone.
I've been married to my wife for 5 years, together for 10.
we have a 4 year old together.
Ever since we've met, she has been spiritually active, devouring new age/self help texts like "The Secret," etc.
We had what I thought was a healthy, happy relationship and family.
About 2 months ago, at a work-related event, she met a guy whom she felt an intense "connection" to (no affair). (In his defense, it seems like he was probably oblivious to her feeling these things)
Apparently the connection/attraction was strong enough that it triggered an intense emotional response from her, which I've learned is her "spiritual awakening."
She is pulling further and further away from me, and our marriage now hangs in the balance.
She has basically said that her love for me has transitioned from romantic to platonic. We haven't really had sex in a while and she doesn't seem to want to be around me very much.
To say I'm devastated would be an understatement, mostly because we have a child together and I don't know how all this will play out.
I love her very much and want this to work out but also realize I can't be a round peg in a square hole. She's also insistent that because she's on this path to enlightenment/higher consciousness/whatever that I can't possibly understand what she's going through--which may be true. I don't doubt she's having a spiritual emergency but I also don't want to see my whole world crumble.
I also understand the "if you love someone set them free" maxim. I can't force her to feel things for me if she doesn't feel them anymore.
I just find it inconceivable how fast this is all happening. It's like she took a trip and never returned.
I'd like to add that I don't doubt the legitimacy of her experience--she is definitely going through something. But I find it hard to swallow that she wants to throw our entire 10 year history--and family--away because of this spiritual awakening. (to be fair, the awakening isn't all about us--she also has childhood traumas and other issues she wants to work through that have been repressed)
We are hoping to see a marriage counselor this week, but I feel like that may be an empty exercise...her mind seems kind of made up that she's not really into me anymore. I feel scared, isolated, abandoned--and to boot, as I've mentioned, I have a job to do and a child to raise--so I can't just curl up in a fetal position and cry my pain away.
If she wants to leave me, i will let her go. If we're meant to be, we will be I guess. But I just find this all so hard to fathom.
Looking for advice and guidance.