@philosopher
You cannot ignore the plain meaning in RASHI.
It is clear to anyone who learns the gmara with RASHI that according to him there is a measure of life in Yaakovs original body.
Breathing – no.
Pulse – no.
It has to be so subtle that embalmers do not notice.
I suggested brain activity.
Which is not noticeable,
It could be something else.
But it is clear in RASHI’s words that he learns this ‘measure of life’ to be in his original guf.
Not like RAMBAN and not like R BACHAY.