Is this poem an allegory that represents something else in life ?

since i have set my lips to your full cup, my sweet,
since i my pallid face between your hands have laid,
since i have known your soul, and all the bloom of it,
and all the perfume rare, now buried in the shade;

since it was given to me to hear on happy while,
the words wherein your heart spoke all its mysteries,
since i have seen you weep, and since i have seen you smile,
your lips upon my lips, and your eyes upon my eyes;

since i have known above my forehead glance and gleam,
a ray, a single ray, of your star, veiled always,
since i have felt the fall, upon my lifetime's stream,
of one rose petal plucked from the roses of your days;

i now am bold to say to the swift changing hours,
pass, pass upon your way, for i grow never old,
fleet to the dark abysm with all your fading flowers,
one rose that none may pluck, within my heart i hold.

your flying wings may smite, but they can never spill
the cup fulfilled of love, from which my lips are wet;
my heart has far more fire than you can frost to chill,
my soul more love than you can make my soul forget.