Read these lines from Emily Dickinson's "A Book":

There is no frigate like a book
To take us lands away,
Nor any coursers like a page
Of prancing poetry.
This traverse may the poorest take
Without oppress of toll;
How frugal is the chariot
That bears a human soul!

In "A Book," Dickinson compares reading to

a voyage
oppression
the human soul
a poem