Personification is a figure of speech in which an inanimate object is represented as if being a person or living being or as if possessing the attributes of a person. A good example is:
Lift up your heads, O you gates. (Psalm 24:7)
Clearly the gates are not living beings with heads. The idea being expressed here is that the Lord is so glorious that even the inanimate objects will seek to worship and praise him.