I fully understand your reservations, that is a big jump one could even call “esoterical”, or “fantastical”.

This is why words can’t relay, prove such a state when we start sensing human existence independent of the biological body, independent of the physical world as we know it — while still living in the biological body in the physical world.

It is something we gradually have to come to actually feel through the right, purposeful and practical method that can give us such tangible, realistic emotional impressions, perceptions.

Here the expression of “the proof of the pudding is eating it” fully applies. It is something one can prove only for oneself after going through the “live” experience.