Alright, I hope it gets all better for your body. I remember your comment from one of the video, that experienced yogi cann get to great depths really quickly, so once you get to 8th jhana which is believe must be happening fairly quickly how long you stay there? and what actually brings us back? can we decide the amount of time we stay in it?
Thank-you for expressing your concern for the health of this body. The things that I realized early in my contemplative life after ascending to the 7th stage of samadhi are:
1) We are not the body. We are spirit encapsulated in a biological form.
2} Biology is inherently cruel, because it requires the weak and the sick, and old to be removed from competition for resources, and reproduction as quickly as possible, which is why predators exist.
3} So, my conclusion then was life is preparation for death. thus, to prepare for death properly, then one must spend one's life developing the contemplative arts, and the fruit there of.
In answer to your question regarding consistent depth in meditation. I arrived in the 8th stage of samadhi sometime after I deepened my daily meditation practice which was around 2000. Later that year I let go of all attachments to life and merged into the all pervasive awareness domain of divine consciousness. That experience persisted with me 24/7 for a number of years. While I do not have that experience 24/7 these days; nonetheless, i experience it at times. Mostly I experience the 4th stage of jhana/samadhi and drop into it as soon as I sit in meditation. When my body enters sleep, and being ill, I take many naps these days, so when I do I leave the body and enter one of the 4 ayatans.
My experience of the 4 ayatanas is they are not linear, like the 4 stages of jhana. Instead one can enter anyone one of them upon laving the body. The more time one spends in the 4th jhana the more facility one has with the 4 ayatanas.
As I age, and my illness progresses the contemplative arts, and the fruit there of have become my constant companions which I take refuge and comfort in. Meditation has stopped being formal and is more continuous. All along in my meditation practice I meditated until the session came to completion. When I deepened my meditation practice I took more to meditating for longer periods, and beyond the feeling of completion in the session. I often found that the session would then go to greater depth, if I remained longer.
I have found ultimately what brings us back to the body is the body has its lifespan. We will simply keep coming back to it until it is dead.
I had something to discuss, about thought and calmness of second jhana, there are 2 layers of mind as i had observed, one is of conscious thinking, which is like a voice we intentionally generate in our head, second is sub-conscious, in which mind randomly brings up thoughts based on memory (it can be visual image or a less louder conversation going on). what i have observed is for most part in second jhana conscious thought is put to rest and this leads to cutting of randomly generated thoughts from the subconscious mind as well. In my experience, total mental activity only stops when we are very deep in 4th jhana, since breath and mind are related so unless breath stops subtle thoughts keep popping up. But to be honest, your breath cant be stopped for long even in 4th jhana, (that may be possible when we go obe perhaps), so some mental activity always remains through out the session, and we may keeping circling between different jhanas and different level of mental stillness.
On stilling the mind. The second jhana is characterized by the stilling of the mind, so until the mind is still one has not gone deeper than the 1st jhana. I am not clear on your use of the term "mental activity." I can apply that term to cognition. Cognition refers to a number of cognitive activities, such as sensing, and interpretation. When the mind is still in the 2nd jhana, one can still experience sensing and interpretation without labeling. I find the deeper I go the less cognitive functions exist. For instance a sense of body persists through the 4th jhana; however, it becomes reduced at each stage of depth, but once one goes out of body, then of course the sense of a body is gone. Nonetheless, as one progresses deeper in the ayatanas the sense of body and cognition becomes reduced until at the 7th stage of samadhi one become simply a point of awareness, and the other entities one interacts with are also just points of awareness.
The breath only appears to stop during the 4th jhana and beyond. It is doubtful to me that the breath stops at these depths. We simply lose awareness of the breath and the body.
Do you agree with this observation or do you think that i never ever crossed second jhana
cause i dont find total cessation of mind (no subtle images etc popping up) unless breath is very very slow and almost stopping(i.e. 4th jhana as per what i understand).
So, from your questions it seems reasonable to me that you have stilled your mind at times, but it might be less frequent than you believe. So, keep meditating consistently. Every time you meditate endeavor to meditate to depth. When not in meditation endeavor to remain the present moment, which will encourage your mind to remain still throughout the day. This will help you meditate to depth when you meditate. Live a contemplative life throughout your life.