Analysis of A Lesson

I know now why the world was sad,
With so much good to make it glad;
Why all things loveliest and best
Have stirred vague sorrows in my breast,
And sweetest days that life has had
Have vexed me with such vast unrest.

I know why I have pined and toiled,
And found all aspirations foiled;
I know why I have gained and spent,
And never learned what riches meant;
I know what lack and loss have spoiled
The treasure of my soul's content.

Like day- dawn on the darkened earth,
Like sun and rain in drought and dearth,
Like spring, that wakens flowers so fast
When barren winter- time is past,
Love, long- deferred, has come to birth —
And I am satisfied at last.

My heart is singing; tears are shed;
I, that was starved, am warmed, and fed —
For love is fire and food and wine,
All comfort earthly and divine.
Now I am living that was dead,
And all that life can give is mine.