Analysis of The Undiscovered Country

Forever am I conscious, moving here,
That should I step a little space aside
I pass the boundary of some glorified
Invisible domain -- it lies so near!
Yet nothing know we of that dim frontier
Which each must cross, whatever fate betide,
To reach the heavenly cities where abide
(Thus Sorrow whispers) those that were most dear,
Now all transfigured in celestial light!
Shall we indeed behold them, thine and mine,
Whose going hence made black the noonday sun? --
Strange is it that across the narrow night
They fling us not some token, or make sign
That all beyond is not Oblivion.