what is the effect of personification used in paragraph?

Question

http://www.tnellen.com/cybereng/lit_terms/terms/2terms.html#Personification

http://web.cn.edu/kwheeler/lit_terms_P.html
"PERSONIFICATION: A trope in which abstractions, animals, ideas, and inanimate objects are given human character, traits, abilities, or reactions. Personification is particularly common in poetry, but it appears in nearly all types of artful writing. Examples include Keat's treatment of the vase in "Ode on a Grecian Urn," in which the urn is treated as a "sylvan historian, who canst thus express / A flowery tale more sweetly than our rhyme," or Sylvia Plath's "The Moon and the Yew Tree," in which the moon "is a face in its own right, / White as a knuckle and terribly upset. / It drags the sea after it like a dark crime." When discussing the ways that animistic religions personify natural forces with human qualities, scientists refer to this process as "anthropomorphizing," sometimes with derogatory overtones. A special sub-type of personification is prosopopoeia, in which an inanimate object is given the ability of human speech."

Sometimes personification is used to help humans understand a mood or topic more clearly. Sometimes it is used positively; sometimes, negatively. It all depends on the author's intent.

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In my thinking, it is a way a writer can give life and motion to an inanimate object, or to an animal. Keats spoke of an Urn in a famous poem as an "unravished bride of quietness."
Another example...the table held its burden without tiring, without fatigue, without complaint.

Thanks ! bobpursley and Writeacher