So i've been practising meditation for quite sometime now as a part of yoga. I usually meditate at night lying down on the bed because im a beginner and since i have a few issues with health (fibromyalgia since 12 years and sciatica which comes and goes). I cannot sit down and meditate because i get a severe pain in my legs and back and cannot relax in the sitting posture. I read about astral projection in this very forum yesterday and i was wondering if we can really let our soul wander without dying. Since life is nothing but soul and since the brain dies 3 minutes after the soul leaves our body, don't we die after an out of body experience? How does the soul come back and even if it does, what if we are dead by then? I'm new here and im sorry if this has already been discussed but im just curious and cant find the answers anywhere else.