Amazing account of what sounds like an amazing experience. With all of those deeply felt changes and feelings, I can see why you would want something tangible and be sad that you don't.

I have made a recording on my phone of my therapist (doing a relaxation type of thing) so that I can hear his very soothing voice any time. That would be relatively easy to do. It sounds though like you want something other than voice?

How about a picture? or video? or some kind of object? that she can send you if willing? Perhaps that would not be enough. Perhaps actually meeting with her would be what really is the only thing. I don't know.

I once asked my therapist if he had any pictures of himself from his earlier days which he has described as counter cultural and even hippie. I was intrigued and asked, not really thinking he would ever do it. But once, when I was having a difficult time and pulling away from him some he came in with such a picture, saying "I wanted to make good on some promises." It actually ended up being more meaningful and touching that I had thought and I do look at that picture and feel warm things.