I'm also not a religious person but I once had a very odd feeling after a guided meditation (I completely lost ALL fear of death for a couple days... including the baseline fear of death, which we all actually have and which I had never noticed before, since it's always there). It is good to be skeptical, but I think it's also good to acknowledge when something truly subjectively weird occurs.
> including the baseline fear of death, which we all actually have
That is a strong claim.
I have no fear of death, but a fear of what often immediately precedes death, namely decrepitude and illness. I'm in my mid 50s and so I watched the generation of my grandparents go through it, and then my parents generation. The only positive I can find in that is that if any of them feared death, the illness had made them prefer it over the constant sickness.
Tibetans talks through all the different stages of heightened awareness as you meditate deeper. In fact, one of the meditative technique requires you to visualize the Tibetan alphabet letter for AH sound, sort of like the OM sound in Hindi, and it goes into great detail about what sort of sensations one might feel, so its very possible that you've reached a mental state that is just void of the ego that you used to have. It's the ego that fears death most of all, because it means losing attachment to the material things in the ego's mind.
I remember one Hindu guy telling me after a long discussion in the sauna, "Ego is your brain trying to protect you from truths you cannot handle".
Do you have any information on these sensations? When this particular meditation is "working" (or at least, when I believe it is), I feel kind of a tingling over my whole body that I don't feel in any other circumstance, I don't know how better to describe it. It's usually around the part where the guided meditation says something like "try to find the rhythm beneath your heart rhythm"
FWIW the guided meditation that got me to my "experience" was apparently inspired by Babaji
I'm also not a religious person but I once had a very odd feeling after a guided meditation (I completely lost ALL fear of death for a couple days... including the baseline fear of death, which we all actually have and which I had never noticed before, since it's always there). It is good to be skeptical, but I think it's also good to acknowledge when something truly subjectively weird occurs.