Hi
Can u please explain that in your experience how u achieve, a) 1st Arupa jhana,
1st arupa jhana happens after being well established in 4th jhana. Not sure if I can call it 'achieving', it rather 'happening'. Mind is perceiving things (space) outside the body, the perception increases more or less like a sphere around the body.
b) oobe i.e. whats the difference in technique and what are the symptoms u feel?
I see no connection between jhana state and OOB in daily practice. I think once having experienced jhana can be a factor enabling OOB, at least my case confirms it. Saying OOB I mean detaching from physical body. What I noticed is it requires activity of mind and silent, close to sleeping body. No jhana required. So mastering OOB is silencing the body while alerting the mind. The ability to relax the body, to release muscle tension is very usefull. The other ability is not to fall asleep - you are to observe the body slowly switching off, this is very hard.
Are you able to get the experience every time u meditate ?
Neither of them, but once I ll manage to reach it fast (arupa jhana) and investigate subject some more I ll share.
But i wud really like to know how u progressed through the obe practice, what are the milestones.. Because i cant yet go out of body in full awareness.. Only thru sleep i experience it that too occasionally...
What I described is what brought success to some ppl I know who continued OOB practice. I remember beginnings were sleepy, as usually one react to sleepy body sensations and fall asleep. The same time it takes years to feel the whole mind made body. In my case it happened as a byproduct of daily meditation as I stopped any attmpts of OOB exercises many years ago. What I also know is that most of the meditators are not able to leave the body at will, they need some time in meditation.
To sum up - jhana states and 'mastering them' is more about things just happening while OOB is a result of volition preceded by a lot of exercices or as you said the other poss is OOB thru sleep.