Poem Paraphrase

This poem paraphrase is from William Meredith "The Illiterate" on page 577

"Was unfamiliar but, truth is, the man
Has never had a letter from anyone;
And now is both afraid of what it means
And ashamed because he has no other means
To find out what it says then to ask someone."

I think what the author is trying to say is that there is a man who has gotten a letter but it is not normal to him since he has never received one before. It is saying he is afraid because he cant read it since he never learned and that he is ashamed because it means the only way he will find out what it says is by going to someone else and asking them to read it to him and tell him what it means.