the book where a neuroscientist dies and goes to heaven

he describes death as heaven
upward into the snail shell spiral
of white and musical color.
a Nabokov experience 
of afterlife, where each reality
is seen twice in the brain.
i hold the yoga pose 
awkwardly, forward thrusting jaw,
the thin foil skin of my abdomen
puckering slightly where the fat lets loose.
i just need enough to hold on to
i think in my yoga-centric way
to pass peace on to my children
so they will not be afraid to watch me die
or afraid to die themselves.
the pinnacle of parenting and wisdom
might be half in teaching how to live
half in teaching how to die.
a little death, every day
loss in every twenty four hour:
a dog, sunglasses, the earbuds again,
best friend moves, favorite lipstick recalled,
the slant of sun there every day
suddenly gone.
ah- we could say, wise and peaceful-
i will simply move like a cat
and lay elsewhere.
he described heaven after fifty two years
of not believing we are more than synapses
firing and misfiring in the dark
now he believes there is everything
we do not know, everything we do not comprehend,
and that we are a part of all of this unknown
even after the slant of sun has taken it's invisible being
and moved where we cannot see.