@NatureLovernow if i can try and explain about my fortress.
It's a place I created a long time ago inside my mind. It's just a simple room, no doors no windows no way for anyone to get in unless you want them too. Inside this room aka fortress you are completely 100% safe from everything and everyone.
The room can contain whatever you like you like, anything that makes you comfortable and feel safe. A fire place and a couch, and a good cup of coffee, whatever works for you. The idea of it was to get to such a relaxed state, physically and mentally almost like dissasociation .
Because of life and outside stresses and noise and what have you I found it hard in the beginning to be able to get to my fortress and stay there and be calm, and above all completely safe. That's the main goal, the calm, and the feeling safe.
So I trained my mind to have a key, or a trigger perhaps, this key instantly transports you to this safe place, completely safe where no one can get in unless you allow them.
The key is a song, in French. It took a lot of practice, now it takes just a few notes and I am there. I understand a little of the song, but didn't getting it translated, because for me it's the key to my fortress. I will share the song with you , and hope what I have said has made sense.
https://youtu.be/1x3pH0wLcEo