Personification :D

Definition: To make something inhuman related to human.
Example:

The Train

I like to see it lap the miles,
And lick the valleys up,
And stop to feed itself at tanks;
And then, prodigious, step

Around a pile of mountains,
And, supercilious, peer
In shanties by the sides of roads;
And then a quarry pare

To fit its sides, and crawl between, Complaining all the while
In horrid, hooting stanza;
Then chase itself down hill
And neigh like Boanerges;
Then, punctual as a start its own,
Stop-docile and omnipotent-
A stable door.

Explanation: To make it seem more realistic. Humans are good to compare because readers are human, too.