Once scared the shit out of my mum when she complained about some hairy corners. I told her “just do what I do mum, close your eyes”
I’ve tried some meditation. Most useful was with Hatha yoga. With other forms I fall asleep. Also fell asleep when following instructions to achieve astral projection. Have never had an OBE. Dreamed I had died once. Just blackness and a sensation of falling. It terrified me. I quite like the idea of a NDE as I’m actually dying.
The one thing which helped was self hypnosis, which I used to relax if I felt a tension headache coming on.
Tension headaches occurred when I had a stressful job and an unhappy marriage. They ceased pretty much immediately after she left. Today I have neither a job nor difficult marriage. Manage to say calm most of the time, although I still tend to catastrophize stuff.