I'd love to hear more about it, whether in this thread or the other one.
Here it can be a good place, as I think my experiences had features in common with jhanas.
Most often, at first I traverse a phase with very vivid memories. These memories are positive, negative, or neutral, although neutral and negative seem to predominate. Its content is not very relevant here, but something that comes often are memories from a tonsillectomy I had performed on me when I was about 3 or 4 years old, and much later hospital memories related to the aftermath a suicide attempt. I strongly suspect they used ketamine in both occasions, the bodily feelings are identical to those memories, particularly the later ones (which, being more recent, are easier to recall). In that stage I also reflect about my life, often from a pessimistic point of view, and feel like a failure, that something is extremely wrong with me, and that I have completely ruined my life. This may partly come from the second hospital memory rather than anything that's actually going on in my life right now, but in that moment it's
Then, I reach a point where I start feeling completely outside of normal reality. I feel my body stretch and "flow", in the moment I interpret it to be "the flow of reality", and I get the impression that I'm dying, kind of at the gates of death. However it's not scary and it's not delusional either, I still know that I'm safe.
Then, there is a sequence very similar in some aspects to the first jhana at the beginning, and then aspects of other jhanas.
The beginning is extremely similar to first jhana, both as I have experienced it in meditation (it's the only jhana I've reached) and as it's described in MN 111:
placing and keeping and rapture and bliss and unification of mind; contact, feeling, perception, intention, mind, enthusiasm, decision, energy, mindfulness, equanimity, and application of mind. He knew those phenomena as they arose, as they remained, and as they went away. He understood: ‘So it seems that these phenomena, not having been, come to be; and having come to be, they flit away.’
It's exactly that. Rapture and bliss (piti and sukha), a strong feeling of energy all over the body (by then, it's more the "subtle body" or "breath body" than the physical body) and a feeling of profound elation, even euphoria. And indeed I see every feeling, image, and thought arise and pass. The focus on the present is very strong, and even making an effort it's hard to think of the past or future. The difference here from first jhana is that it requires no focus or skill whatsoever, it's forced on me by the substance.
After that, there is progressively more and more light, and the energy in my body starts being the only thing I perceive, I don't perceive even a "subtle body" anymore. It's as if I become a cloud of energy. My sense of self starts to weaken more and more, and I feel the energy that I am flowing towards a very bright light, like a sun, to merge with it.
I have never gotten any further. I don't merge with it, and start coming down.
After those strong experiences, I personally haven't had the urge to repeat it immediately. It may be related to the memories phase that I go through, sometimes it has been tough, although much less than if something similar were to happen with a tryptamine.
It's almost as if 5-MeO-DMT lifts you upward into higher consciousness and ketamine lowers you down into higher consciousness, if that makes any sense.
Yes, although I haven't experienced 5-MeO-DMT I think I know what you mean. Ketamine feels to me like it takes me to the gates of death. The movement is definitely "downwards".
The after-effects of 5-MeO-DMT are a lot more wholesome, nourishing, and satisfying.
I believe that. I have found Pharma/Ayahuasca to be a much superior experience to ketamine. But as they are so different, I find them both interesting. My last Ayahuasca experience seems to have been very conditioned by my previous ketamine experience several days before. It's as if ketamine had opened something in me, and the lower than planned dose of Ayahuasca was then able to fully work inside me.