I had a wonderful, really amazing first therapist for about 18 months. I had to stop seeing her, because of the situation and not from choice.
I found it devastating at the time, but I did get through it and I found another therapist I work with now who I love. It was a difficult transition, because I didn't believe I it was good to leave my first therapist, and losing her made me feel lost and abandoned. In fact, I now think that I needed to move on to someone different. I didn't realise that at the time though. At the time I was completely miserable.
It's interesting that you say you feel you have a spiritual connection with your current therapist. This is only my personal viewpoint and please feel free to disregard it if it doesn't resonate with you. I believe that we're brought together with the people we need to be with, for the time we need to be with them. When that is a big thing, it's hard to accept an end point. But I believe that if circumstances are ending something, it's because that means it's right for us to switch to something/someone else now. Even if it doesn't feel right to us consicously or emotionally.
My suggestion would be to think about all the things that make your therapist so hard to lose. That will tell you the qualities/training/specialties that you want to look for in a new therapist. Consider both training and approach, and personal qualities.
In my case, I valued seeing an integrative therapist (one who has trained in a number of different approaches, so can use whatever's most appropriate for that client at that moment) and someone who was willing to work with me on my art and dreams. I also valued my therapist's gentleness and compassion, her willingness to let me direct the therapy, her belief that I could heal and the fact that I could talk with her about spiritual issues. Someone else might feel completely differently, even the opposite, but the important thing was to identify what helped me.
I looked for those things in a new person, and it gave me questions to ask them when interviewing potential new therapists. "Interviewing" meaning a phone call, and then - if that wen't well - a trial session. I asked practical questions, like "Have you ever done any art therapy?" and "How do you feel about working with dreams". Also, more general questions, like "How do you keep things safe?", "What would you do if you thought I was dissociating?" and "I don't tend to avoid things, so if I think it's not a good idea to talk about something I don't want to be persuaded otherwise - how would you feel about that?"
When interviewing new therapists, I didn't have a particular answer in mind for my questions. I just wanted to get a sense of them from whatever answer they gave, and see if that felt right. For that reason, I tended to ask open questions - things like "What do you think of x", "How might you approach y" etc. Rather than closed questions, which can only be answered yes or no (eg "do you think x?", "have you done y?")
I'm sorry you're losing your therapist. I know how hard it is. I struggled very badly. It did work out in the end, though, and I think the more you can work on acceptance and looking forward, the better. If only I had followed that advice myself!
