Well it’s interesting that this didn’t make it into my earlier report, but I actually had a distinct sense at the time that the sudden anxiety was a reaction to that most stable, pristine, profound and rich PCE that I had ever had.
In other words, the anxiety was really about confronting the ending of ‘me’.
I think Kuba got it right – I remember thinking precisely that this me that had gotten me up to this point, that, too, will have to go! So the anxiety manifested mostly from the point of view of that part of me, if I could put it that way. But really it is about the ending of ‘me’, as Vineeto said, giving up what ‘I’ hold as most dear.
Ever since that profound and remarkable PCE, things are markedly different. It was just so astoundingly crystal clear, with no room for any doubt whatsoever, that that was perfection, that it is always available, and that that is what I want, how I want life to be. Before that experience I wouldn’t really be able to say what being actually free would be like, I had no referent to really point that to. But that experience showed me clearly how it would be, with no problem whatsoever, because it was so thorough and clear. I understand that actual freedom itself will be different than that since it was still a temporary experience, but it was enough for me to not have any doubt anymore.
So now instead of me trying to get myself to go towards self-immolation, which is how I got to that point (and it was very effective apparently!), it is more about whatever obstacles I have that remain, getting out of the way for it to happen, definitively. And it is clear now, clearer than ever before in fact, that all of me will have to go.
But the change is palpable. Now with most things that I would think or feel of doing, that I’d normally get caught up in and put energy in, it’s like a “oh why would I get caught up in that? I want to self-immolate instead” 
And what remains that I do get caught up in, I’m seeing it is more out of familiarity than anything else… … all seems very promising!!