Analysis of The First Spring Day

I wonder if the sap is stirring yet,
If wintry birds are dreaming of a mate,
If frozen snowdrops feel as yet the sun
And crocus fires are kindling one by one:
Sing, robin, sing;
I still am sore in doubt concerning Spring.

I wonder if the springtide of this year
Will bring another Spring both lost and dear;
If heart and spirit will find out their Spring,
Or if the world alone will bud and sing:
Sing, hope, to me;
Sweet notes, my hope, soft notes for memory.

The sap will surely quicken soon or late,
The tardiest bird will twitter to a mate;
So Spring must dawn again with warmth and bloom,
Or in this world, or in the world to come:
Sing, voice of Spring,
Till I too blossom and rejoice and sing.