It's the form of a verb used non-finitely, with or without the particle "to". To walk is an infinitive.
Use of Personification helps in deep understanding of poem and make if interesting.
<u>Explanation:</u>
Personification means considering some object as a human. J.Patrick Lewis has used personification in his poem. Writing poems in this style makes it easily understandable. When we compare any object with human beings, it becomes easy to get a deep understanding of it.
J.Patrick Lewis writes a poem for children mostly. To enable children to get a deep understanding of the poem he is making more use of personification. This makes is poems more interesting. Like for example if it compares Sun's warmth with the arms of a loving mother.
