Classic Poem

Now , on a sudden, I know it, the secret, the secret of life.
Why, the very green of the grass in the fields with betrayal is rife!
The whirr of the grasshopper by the wayside proclaims it to all;
'T is unrolled as a scroll to all eyes in the curve of the waterfall.
But, for me, I can only wonder at mortals,—the secret out;
For they see, hear, taste, smell, feel not what Heaven reveals all about.