What is the main idea of paragraph 13?

The thirteenth paragraph of W.W. Jacob's classic short story "The Monkey's Paw" reads,

At the third glass his eyes got brighter, and he began to talk, the little family circle regarding with eager interest this visitor from distant parts, as he squared his broad shoulders in the chair and spoke of strange scenes and doughty deeds; of wars and plagues and strange peoples. (2)

The thirteenth paragraph is part of the exposition of the story, which reminds Mr. White to question Sergeant-Major Morris about the magic monkey's paw. The main idea of the paragraph is that Sergeant-Major Morris is an experienced traveler, who entertains the White family with his elaborate, fascinating stories from distant parts of the world, which will eventually introduce the story of the magic monkey's paw. After his alcoholic beverage loosens him up, Morris proceeds to tell the eager White family intriguing stories, which serve as the catalyst for Mr. White to bring up the story Morris once told him about acquiring a magic monkey's paw in India. Overall, the thirteenth paragraph serves as a bridge for Mr. White to bring up the topic of the magic monkey's paw that Morris previously spoke about. As their conversation continues, Morris reluctantly speaks about the monkey's paw, and the reader becomes aware that the talisman may be ominous and wicked.

Paragraph thirteen of "The Monkey's Paw" is:

After the third glass his eyes got brighter and he began to talk. The little family circle listened with growing interest to this visitor from distant parts, as he squared his broad shoulders in the chair and spoke of wild scenes and brave acts; of wars and strange peoples.

The main idea in this paragraph is that it provides exposition; the monkey's paw will become the catalyst for much of the story's action, and this paragraph sets up the introduction of the monkey's paw. The Sergeant-Major loosens up after a few glasses of whiskey and begins to describe his exploits, and Mr. and Mrs. White and their son are enthralled as he transports them away from their rural, uneventful existence to exotic India, where he obtained the magical monkey's paw. This paragraph is preceded by one in which readers learn that the Sergeant-Major has recently suffered a loss, so his animation in telling his story captivates the reader along with the Whites. It is clear that this is more than a war story or travelogue.