Analysis of The Unknown Country

WHERE is the unknown country?'
I whispered sad and slow,--
'The strange and awful country
To which I soon must go, must go,
To which I soon must go?'

Out of the unknown country
A voice sang soft and low:--
'O pleasant is that country
And sweet it is to go, to go,
And sweet it is to go.

'Along the shining country
The peaceful rivers flow:
And in that wondrous country
The tree of life does grow, does grow,
The tree of life does grow.'

Ah, then into that country
Of which I nothing know,
The everlasting country,
With willing heart I go, I go,
With willing heart I go.