Question

One of my favorite verses from one of Helen Keller poems

O Dark! wise, vital, thought-quickening dark!
In thy mystery thou hidest the light
That is the soul's life.
Upon thy solitary shores I walk unafraid;
I dread no evil; though I walk in the valley of the shadow,
I shall not know the ecstasy of fear
When gentle Death leads me through life's open door,
When the bands of night are sundered,
And the day outpours its light.
Out of the uncharted, unthinkable dark we came,
And in a little time we shall return again
Into the vast, unanswering dark.