Nature speaks in symbols and in signs. - John Greenleaf Whittier

To eat the lotus of the Nile
And drink the poppies of Cathay.

As yonder tower outstretches to the earth
The dark triangle of its shade alone
When the clear day is shining on its top;
So, darkness in the pathway of man's life
Is but the shadow of God's providence,
By the great Sun of wisdom cast thereon;
And what is dark below is light in heaven.

Let the thick curtain fall;
I better know than all
How little I have gained,
How vast the unattained.