Porque

um presente se honra ao usá-lo:

Go thy great way!
The Stars thou meetst
Are even as Thyself -
For what are Stars but Asterisks
To point a human Life?

e se retribui:

Speech is one symptom of Affection
And Silence one -
The perfectest communication
Is heard of none -

Exists and its endorsement
Is had within -
Behold, said the Apostle,
Yet had not seen!

Emily Dickinson, "1638" e "1681", in Poemas, Madrid, Catedra, 2000