Frozen Degrees of Separation

During the last ice age, there was a fur beast with a purpose
to outlive all the large animals of its time
by dying precisely the proper death

which is the mission assigned at birth to all living creatures
according to what I've been told every day of every year
since that first day when there was an attempt to go
where one is not supposed to go, and the forcible removal
was accompanied by the explanation: thou shalt end

on the page that was chosen by the more powerful 
being, not time nor space nor plans, because that was
the teaching of what is more than what, which is better

how does one find the ideal in a murk of failure
A minuses, on the coldest day of the eon.