Moon and Clouds

But often, in the world's most crowded streets,
But often, in the din of strife,
There rises an unspeakable desire
After the knowledge of our buried life:
A thirst to spend our fire and restless force
In tracking out our true, original course;
A longing to inquire
Into the mystery of this heart which beats
So wild, so deep in us-to know
Whence our lives come and where they go.

Matthew Arnold, part of "The Buried Life"