I can't get anywhere near as deep as I used to go, I'm guessing perhaps because of a diet change
You might try doing it in a group - it seems to make it more intense for me at least.
I think whatever chemical is induced by the drugs is naturally secreted during deep states of meditation, so it can be utterly euphoric as well as healthy for your mind and body.
Yes I think so. I suspect that that the neurotransmitter profile may be quite similar to some drugs - without the side effects!
I haven't tried it in a group, but I did try it with one other person before and I just fell asleep. Definitely something I shall give a try if returning to my previous diet, which I plan to do very soon, doesn't have the desired effect.
Thanks for the advice!