it goes back to the Self - where it should have been in the beginning.
if you've ever seen a 'fiber cutting ceremony'
it's exactly that -
the shaman 'cuts' the fibers connecting
energy fibers to each other.
then the shaman re routes the fibers
back to the Self.
they aren't left to flop around.
The energy body replenishes itself.
That's how it was designed to work.